<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>16410</id>
    <completedYear/>
    <publishedYear>2007</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>poster</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Phenanthrene ring-fused boron-dipyrromehenes an new highly emitting red visible/near-infrared dyes</title>
    <parentTitle language="deu">Method and Application of Fluerescence (MAF10)</parentTitle>
    <identifier type="old">18393</identifier>
    <enrichment key="eventName">Method and Application of Fluerescence (MAF10)</enrichment>
    <enrichment key="eventPlace">Salzburg, Austria</enrichment>
    <enrichment key="eventStart">2007-09-09</enrichment>
    <enrichment key="eventEnd">2007-09-12</enrichment>
    <author>Ana Belén Descalzo López</author>
    <collection role="fulltextaccess" number="">Weder Datei noch physisches Exemplar vorhanden ("No Access")</collection>
    <collection role="literaturgattung" number="">Präsentation</collection>
  </doc>
  <doc>
    <id>5985</id>
    <completedYear/>
    <publishedYear>2005</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>184</pageFirst>
    <pageLast>200</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>127</volume>
    <type>article</type>
    <publisherName>American Chemical Society</publisherName>
    <publisherPlace>Washington, DC</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Rational Design of a Chromo- and Fluorogenic Hybrid Chemosensor Material for the Detection of Long-Chain Carboxylates</title>
    <abstract language="eng">A strategy for the rational design of a new optical sensor material for the selective recognition of long-chain carboxylates in water is presented. The approach relies on the combination of structure-property relationships to single out the optimal molecular sensor unit and the tuning of the sensing characteristics of an inorganic support material. A spacer-substituted 7-urea-phenoxazin-3-one was employed as the signaling moiety and a mesoporous trimethylsilylated UVM-7 (MCM-41 type) material served as the solid support. The sensor material shows the advantageous features of both modules that is absorption and emission in the visible spectral range, a fluorescence red-shift and enhancement upon analyte coordination, and the amplification of noncovalent (binding) and hydrogen-bonding (recognition) interactions in the detection event. Besides these basic results that are related to the design and performance of the sensor material, the paper discusses general aspects of amido-substituted phenoxazinone photophysics and addresses some general features of molecular anion recognition chemistry in aqueous vs nonaqueous media, utilizing steady-state and time-resolved optical as well as NMR spectroscopies. Detailed studies on potentially competing biochemical species and a first access to the schematic model of the response of the sensor material as obtained by a combination of fluorescence lifetime distribution analysis and Langmuir-type fitting of the gross binding constants complement the key issues of the paper.</abstract>
    <parentTitle language="eng">Journal of the American chemical society</parentTitle>
    <identifier type="old">6357</identifier>
    <identifier type="doi">10.1021/ja045683n</identifier>
    <identifier type="issn">0002-7863</identifier>
    <identifier type="issn">1520-5126</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">20.01.2005</enrichment>
    <author>Ana Belén Descalzo López</author>
    <author>Knut Rurack</author>
    <author>Hardy Weißhoff</author>
    <author>Ramon Martínez-Mánez</author>
    <author>M. Dolores Marcos</author>
    <author>P. Amorós</author>
    <author>Katrin Hoffmann</author>
    <author>J. Soto</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Chemosensor</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Carboxylate</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Rationales Design</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Hybridmaterialien</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluoreszenz</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>27488</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>16844</pageFirst>
    <pageLast>16867</pageLast>
    <pageNumber/>
    <edition/>
    <issue>52</issue>
    <volume>18</volume>
    <type>article</type>
    <publisherName>Wiley-VCH Verl.</publisherName>
    <publisherPlace>Weinheim</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Synthesis and properties  of fused-ring-expanded porphyrins that were core-modified with group 16 heteroatoms</title>
    <abstract language="eng">The synthesis of a series of novel core-modified and fused-ring-expanded tetraphenylporphyrins is reported. Theoretical calculations and magnetic circular dichroism (MCD) and fluorescence spectroscopic measurements were used to analyze the effect of core modification with Group 16 oxygen, sulfur, selenium, and tellurium atoms on the optical properties and electronic structures of the porphyrins. Marked redshifts of the Q and B bands and accelerated intersystem-crossing rates were observed, thus making these compounds potentially suitable for use in a variety of applications. The scope for further fine-tuning of these optical properties based on additional structural modifications, such as the incorporation of fused benzene rings to form ABAB structures by using a thiophene precursor with a fused bicyclo[2.2.2]octadiene ring and the introduction of various substituents onto the meso-phenyl rings, is also examined.</abstract>
    <parentTitle language="eng">Chemistry - A European journal</parentTitle>
    <identifier type="old">30305</identifier>
    <identifier type="doi">10.1002/chem.201200956</identifier>
    <identifier type="issn">0947-6539</identifier>
    <identifier type="issn">1521-3765</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">20.12.2012</enrichment>
    <author>H.-J. Xu</author>
    <author>J. Mack</author>
    <author>D. Wu</author>
    <author>Z.-L. Xue</author>
    <author>Ana Belén Descalzo López</author>
    <author>Knut Rurack</author>
    <author>N. Kobayashi</author>
    <author>Z. Shen</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Density functional calculations</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluorescence</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>MCD spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Porphyrinoids</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ring expansion</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>12563</id>
    <completedYear/>
    <publishedYear>2006</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2239</pageFirst>
    <pageLast>2241</pageLast>
    <pageNumber/>
    <edition/>
    <issue>21</issue>
    <volume/>
    <type>article</type>
    <publisherName>Royal Society of Chemistry</publisherName>
    <publisherPlace>Cambridge</publisherPlace>
    <creatingCorporation>Chemical Society</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Sensory hybrid host materials for the selective chromo-fluorogenic detection of biogenic amines</title>
    <parentTitle language="eng">Chemical communications</parentTitle>
    <identifier type="old">14292</identifier>
    <identifier type="issn">0022-4936</identifier>
    <identifier type="issn">0009-241x</identifier>
    <identifier type="issn">1359-7345</identifier>
    <identifier type="issn">1364-548x</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">17.07.2006</enrichment>
    <author>B. García-Acosta</author>
    <author>M. Comes</author>
    <author>J.L. Bricks</author>
    <author>M.A. Kudinova</author>
    <author>V.V. Kurdyukov</author>
    <author>A.I. Tolmachev</author>
    <author>Ana Belén Descalzo López</author>
    <author>M. Dolores Marcos</author>
    <author>Ramon Martínez-Mánez</author>
    <author>A. Moreno</author>
    <author>F. Sancenón</author>
    <author>J. Soto</author>
    <author>L.A. Villaescusa</author>
    <author>Knut Rurack</author>
    <author>J. M. Barat</author>
    <author>I. Escriche</author>
    <author>P. Amorós</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Biogene Amine</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Histamin</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Farbreaktion</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Pyralium-Farbstoffe</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluoreszenz</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Hybrid-Materialien</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>27113</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>7306</pageFirst>
    <pageLast>7309</pageLast>
    <pageNumber/>
    <edition/>
    <issue>23</issue>
    <volume>18</volume>
    <type>article</type>
    <publisherName>Wiley-VCH Verl.</publisherName>
    <publisherPlace>Weinheim</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Dihydronaphthalene-fused Boron-dipyrromethene (BODIPY) dyes: insight into the electronic and conformational tuning modes of BODIPY fluorophones</title>
    <parentTitle language="eng">Chemistry - A European journal</parentTitle>
    <identifier type="old">29904</identifier>
    <identifier type="doi">10.1002/chem.201201081</identifier>
    <identifier type="issn">0947-6539</identifier>
    <identifier type="issn">1521-3765</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">26.11.2012</enrichment>
    <author>Y.-W. Wang</author>
    <author>Ana Belén Descalzo López</author>
    <author>Z. Shen</author>
    <author>X.-Z. You</author>
    <author>Knut Rurack</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Farbstoffe</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluoreszenz</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>NMR-Spektroskopie</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Synthese</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>19146</id>
    <completedYear/>
    <publishedYear>2009</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>3173</pageFirst>
    <pageLast>3185</pageLast>
    <pageNumber/>
    <edition/>
    <issue>13</issue>
    <volume>15</volume>
    <type>article</type>
    <publisherName>Wiley-VCH Verl.</publisherName>
    <publisherPlace>Weinheim</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">On the signalling pathways and Cu(II)-mediated anion indication of N-meso-substituted heptamethine cyanine dyes</title>
    <abstract language="eng">Three mid-chain rigidified heptamethine cyanine dyes substituted with dimethylamino or cyclam groups at the meso position of the polymethine chain have been prepared and studied both experimentally and theoretically with respect to their spectroscopic response toward protons and various metal ions. Despite a potentially rich conformational ground-state chemistry, the spectroscopic studies revealed that the behaviour of the dyes is in agreement with Kuhn's classic polymethine dye theory. Coordination of metal ions and protonation of the alkyl amino groups in the cyclam moiety accordingly lead to moderate bathochromic shifts in absorption and reduced Stokes shifts. In contrast, protonation of the dimethylamino-substituted derivatives occurs at the polymethine chain, transforming the heptamethine into a trimethine-type chromophore with concomitant gigantic spectral blueshifts. In the presence of CuII in buffered aqueous solution, the cyclam-substituted dye selectively forms near-infrared absorbing aggregates. The latter allow the determination of citrate under realistic conditions by changes in absorption at wavelengths greater than 800 nm, which results from a disruption of the aggregates when citrate binds to CuII. The copper ions thus act as mediators in a signalling reaction that constitutes a colourimetric displacement assay.</abstract>
    <parentTitle language="eng">Chemistry - A European journal</parentTitle>
    <identifier type="old">21344</identifier>
    <identifier type="doi">10.1002/chem.200802087</identifier>
    <identifier type="issn">0947-6539</identifier>
    <identifier type="issn">1521-3765</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">26.03.2009</enrichment>
    <author>Ana Belén Descalzo López</author>
    <author>Knut Rurack</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Anions</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Copper</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Crown compounds</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dyes/pigments</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polymethines</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>12824</id>
    <completedYear/>
    <publishedYear>2006</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>5924</pageFirst>
    <pageLast>5948</pageLast>
    <pageNumber/>
    <edition/>
    <issue>36</issue>
    <volume>45</volume>
    <type>article</type>
    <publisherName>Wiley-VCH</publisherName>
    <publisherPlace>Weinheim</publisherPlace>
    <creatingCorporation>Gesellschaft Deutscher Chemiker</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">The Supramolecular Chemistry of Organic-Inorganic Hybrid Materials</title>
    <abstract language="eng">The combination of nanomaterials as solid supports and supramolecular concepts has led to the development of hybrid materials with improved functionalities. These hetero-supramolecular ideas provide a means of bridging the gap between molecular chemistry, materials sciences, and nanotechnology. In recent years, relevant examples have been reported on functional aspects, such as enhanced recognition and sensing by using molecules on preorganized surfaces, the reversible building of nanometer-sized networks and 3D architectures, as well as biomimetic and gated chemistry in hybrid nanomaterials for the development of advanced functional protocols in three-dimensional frameworks. This approach allows the fine-tuning of the properties of nanomaterials and offers new perspectives for the application of supramolecular concepts.</abstract>
    <parentTitle language="eng">Angewandte Chemie / International Edition</parentTitle>
    <identifier type="old">14563</identifier>
    <identifier type="doi">10.1002/anie.200600734</identifier>
    <identifier type="issn">1433-7851</identifier>
    <identifier type="issn">1521-3773</identifier>
    <identifier type="issn">0570-0833</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="bibliotheksstandort">ZA 12</enrichment>
    <enrichment key="date_peer_review">15.09.2006</enrichment>
    <author>Ana Belén Descalzo López</author>
    <author>Ramon Martínez-Mánez</author>
    <author>F. Sancenón</author>
    <author>Katrin Hoffmann</author>
    <author>Knut Rurack</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Aggregation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Mesoporous materials</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Molecular recognition</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanoparticles</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sensors</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>24208</id>
    <completedYear/>
    <publishedYear>2011</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>8965</pageFirst>
    <pageLast>8983</pageLast>
    <pageNumber/>
    <edition/>
    <issue>32</issue>
    <volume>17</volume>
    <type>article</type>
    <publisherName>Wiley-VCH Verl.</publisherName>
    <publisherPlace>Weinheim</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">meso-Aryl phenanthroporphyrins: Synthesis and spectroscopic properties</title>
    <abstract language="eng">The successful synthesis of tetraphenyltetraphenanthroporphyrin (TPTPhenP; 5a) in 2006 under modified Rothemund–Lindsey conditions yielded a tetraphenyl porphyrinoid with a B band redshifted to an unprecedented 576 nm. Radially symmetric fused-ring expansion of tetraphenylporphyrin with phenanthrene moieties results in very deep saddling due to steric crowding and very marked redshifts of the Q and B (or Soret) porphyrinoid absorption bands. The extent to which the TPTPhenP structure can be further modified is explored, and the optical properties of TPTPhenPs are analyzed based on a perimeter model approach that makes use of time-dependent DFT calculations and magnetic circular dichroism spectroscopy and also based on a detailed analysis of the fluorescence emission. Attempts to introduce substituents at the ortho and meta positions of the meso-phenyl groups and to insert a central metal proved unsuccessful. The synthesis of a series of TPTPhenPs with strong electron-withdrawing (—CN, —NO2) and -donating (—CH3, —N(CH3)2) substituents at the para positions of the meso-phenyl rings is reported. Marked redshifts of the main spectral bands were consistently observed. The most pronounced spectral changes were observed with —N(CH3)2 groups (5i) due to a marked destabilization of the HOMO, which has large MO coefficients on the meso-carbon atoms. Protonation of 5i at both the ligand core and at the —N(CH3)2 groups resulted in unprecedented Q00 band absorption at wavelengths greater than 1200 nm.</abstract>
    <parentTitle language="eng">Chemistry - A European journal</parentTitle>
    <identifier type="old">26839</identifier>
    <identifier type="doi">10.1002/chem.201002596</identifier>
    <identifier type="issn">0947-6539</identifier>
    <identifier type="issn">1521-3765</identifier>
    <enrichment key="date_peer_review">05.09.2011</enrichment>
    <author>H.-J. Xu</author>
    <author>J. Mack</author>
    <author>Ana Belén Descalzo López</author>
    <author>Z. Shen</author>
    <author>N. Kobayashi</author>
    <author>X.-Z. You</author>
    <author>Knut Rurack</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Charge transfer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Circular dichroism</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dyes/pigments</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Porphyrinoids</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Protonation</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>20957</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2887</pageFirst>
    <pageLast>2903</pageLast>
    <pageNumber/>
    <edition/>
    <issue>9</issue>
    <volume>16</volume>
    <type>article</type>
    <publisherName>Wiley-VCH Verl.</publisherName>
    <publisherPlace>Weinheim</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Dihydronaphthalene-fused Boron-dipyrromethene (BODIPY) dyes: insight into the electronic and conformational tuning modes of BODIPY fluorophores</title>
    <abstract language="eng">A new series of boron-dipyrromethene (BDP, BODIPY) dyes with dihydronaphthalene units fused to the β-pyrrole positions (1 a-d, 2) has been synthesised and spectroscopically investigated. All the dyes, except pH-responsive 1 d in polar solvents, display intense emission between 550-700 nm. Compounds 1 a and 1 b with a hydrogen atom and a methyl group in the meso position of the BODIPY core show spectroscopic properties that are similar to those of rhodamine 101, thus rendering them potent alternatives to the positively charged rhodamine dyes as stains and labels for less polar environments or for the dyeing of latex beads. Compound 1 d, which carries an electron-donating 4-(dimethylamino)phenyl group in the meso position, shows dual fluorescence in solvents more polar than dibutyl ether and can act as a pH-responsive "light-up" probe for acidic pH. Correlation of the pKa data of 1 d and several other meso-(4-dimethylanilino)-substituted BODIPY derivatives allowed us to draw conclusions on the influence of steric crowding at the meso position on the acidity of the aniline nitrogen atom. Preparation and investigation of 2, which carries a nitrogen instead of a carbon as the meso-bridgehead atom, suggests that the rules of colour tuning of BODIPYs as established so far have to be reassessed; for all the reported couples of meso-C- and meso-N-substituted BODIPYs, the exchange leads to pronounced redshifts of the spectra and reduced fluorescence quantum yields. For 2, when compared with 1 a, the opposite is found: negligible spectral shifts and enhanced fluorescence. Additional X-ray crystallographic analysis of 1 a and quantum chemical modelling of the title and related compounds employing density functional theory granted further insight into the features of such sterically crowded chromophores.</abstract>
    <parentTitle language="eng">Chemistry - A European journal</parentTitle>
    <identifier type="old">23293</identifier>
    <identifier type="doi">10.1002/chem.200902527</identifier>
    <identifier type="issn">0947-6539</identifier>
    <identifier type="issn">1521-3765</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">04.03.2010</enrichment>
    <author>Y.-W. Wang</author>
    <author>Ana Belén Descalzo López</author>
    <author>Z. Shen</author>
    <author>X.-Z. You</author>
    <author>Knut Rurack</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dyes/pigments</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluorescent probes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Photophysics</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Protonation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Boron</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>17632</id>
    <completedYear/>
    <publishedYear>2008</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>164</pageFirst>
    <pageLast>171</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>1130</volume>
    <type>article</type>
    <publisherName>New York Academy of Sciences</publisherName>
    <publisherPlace>New York, NY</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Red/Near-infrared Boron-Dipyrromethene Dyes as Strongly Emitting Fluorophores</title>
    <parentTitle language="eng">Annals of the New York academy of sciences</parentTitle>
    <identifier type="old">19705</identifier>
    <identifier type="doi">10.1196/annals.1430.016</identifier>
    <identifier type="issn">0077-8923</identifier>
    <identifier type="issn">1749-6632</identifier>
    <identifier type="issn">0094-8500</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">24.06.2008</enrichment>
    <author>Ana Belén Descalzo López</author>
    <author>H.-J. Xu</author>
    <author>Z. Shen</author>
    <author>Knut Rurack</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>BODIPY dyes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Near-infrared fluorophores</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluorescent indicators</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Charge transfer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ring-fusion</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
</export-example>
