TY - JOUR A1 - Fischer, Franziska A1 - Scholz, G. A1 - Batzdorf, Lisa A1 - Wilke, Manuel A1 - Emmerling, Franziska T1 - Synthesis, structure determination, and formation of a theobromine: oxalic acid 2:1 cocrystal JF - CrystEngComm N2 - The structure and the formation pathway of a new theobromine : oxalic acid (2 : 1) cocrystal are presented. The cocrystal was synthesised mechanochemically and its structure was solved based on the powder X-ray data. The mechanochemical synthesis of this model compound was studied in situ using synchrotron XRD. Based on the XRD data details of the formation mechanism were obtained. The formation can be described as a self-accelerated ('liquid like') process from a highly activated species. KW - ssNMR spectroscopy KW - Synchrotron measurements KW - API molecule PY - 2015 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-331567 DO - https://doi.org/10.1039/c4ce02066a SN - 1466-8033 VL - 17 IS - 4 SP - 824 EP - 829 CY - London, UK AN - OPUS4-33156 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Emmerling, Franziska T1 - Synthesis and Structural Characterization of Cocrystals T2 - International School of Crystallography, 46th Course: The Future of Dynamic Structural Science T2 - International School of Crystallography, 46th Course: The Future of Dynamic Structural Science CY - Erice, Sicily, Italy DA - 2013-05-31 PY - 2013 AN - OPUS4-32502 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Nguyen, Thi Yen A1 - Wilke, Manuel A1 - Emmerling, Franziska T1 - Synthese- und Kristallisationsuntersuchungen mittels insitu Synchrotron XRD T2 - Workshop "Zeit und temperaturaufgelöste Röntgenbeugung" T2 - Workshop "Zeit und temperaturaufgelöste Röntgenbeugung" CY - Pfinztal, Germany DA - 2013-11-14 PY - 2013 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-29895 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Rump, Doreen A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Synthese und Charakterisierung von Cokristallen T2 - 7. Interdisziplinäres Doktorandenseminar T2 - 7. Interdisziplinäres Doktorandenseminar CY - Berlin, Germany DA - 2013-02-24 PY - 2013 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-28286 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Rump, Doreen A1 - Emmerling, Franziska A1 - Panne, Ulrich T1 - Strukturelle Charakterisierung von Cokristallen T2 - Anakon 2013 T2 - Anakon 2013 CY - Essen, Germany DA - 2013-03-04 PY - 2013 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-28287 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Schenk, Jonas A1 - Batzdorf, Lisa A1 - Emmerling, Franziska A1 - Kneipp, Janina A1 - Panne, Ulrich A1 - Buurman, Merwe T1 - Simultaneous UV/Vis spectroscopy and surface enhanced raman scattering of nanoparticle formation and aggregation in levitated droplets JF - Analytical methods N2 - The formation and growth of hydroxylamine reduced silver nanoparticles were investigated by simultaneous Raman and UV/Vis spectroscopy coupled to an acoustic levitator as a sample holder. Based on the UV/Vis spectra, a two step particle formation mechanism with fast initial formation and adjacent coalescence can be proposed for the reduction of silver nitrate with hydroxylamine. The presence of the analyte adenine during particle formation resulted in differences in the adenine SERS signature compared to experiments, where adenine was added after particle synthesis. It was possible to monitor the adenine and sodium chloride induced aggregation of the nanoparticles and its dynamics based on both the extinction spectra and the SERS data. Correlating the information from the extinction spectra with the SERS intensity, the maximum SERS signals were observed at maximum extinction of the aggregated nanoparticle solution at the Raman excitation wavelength. PY - 2012 DO - https://doi.org/10.1039/c2ay05744a SN - 1759-9660 SN - 1759-9679 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. N1 - Geburtsname von Buurman, Merwe: Albrecht, M. - Birth name of Buurman, Merwe: Albrecht, M. VL - 4 IS - 5 SP - 1252 EP - 1258 PB - RSC Publ. CY - Cambridge AN - OPUS4-25742 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Wenzel, Klaus-Jürgen A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Reorganization of a Zn Oxalate Bipyridine Structure at high Temperatures T2 - Fourth Joint BER II and BESSY II Users Meeting T2 - Fourth Joint BER II and BESSY II Users Meeting CY - Berlin, Germany DA - 2012-12-12 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-27478 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Zientek, Nicolai A1 - Batzdorf, Lisa A1 - Kraume, M. A1 - Emmerling, Franziska A1 - Maiwald, Michael T1 - Online-NMR-Methoden zur Analyse des Auflösungsverhaltens von pharmazeutischen Cokristallen T2 - 8. Kolloquium Arbeitskreis Prozessanalytik T2 - 8. Kolloquium Arbeitskreis Prozessanalytik CY - Berlin, Germany DA - 2012-12-03 KW - Quantitative Online-NMR-Spektroskopie KW - Cokristalle KW - Auflösungskinetik PY - 2012 SN - 978-3-9815360-1-0 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. IS - P12 SP - 40 AN - OPUS4-28267 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Panne, Ulrich A1 - Emmerling, Franziska T1 - Mechanochemical Synthesis of Two 2D Organometallic Structures: [Co(C2o4)(4,4'-bipy)] and [Zn3(C2O4)3(4,4'-bipy)4] T2 - 2. Berliner Chemie Symposium vom JCF Berlin T2 - 2. Berliner Chemie Symposium vom JCF Berlin CY - Berlin, Germany DA - 2012-04-03 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-27193 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Batzdorf, Lisa A1 - Emmerling, Franziska A1 - Panne, Ulrich T1 - Mechanochemical Synthesis of Two 2D Organometallic Structures: [Co(C2O4)(4,4'-bipy)] and [Zn3(C2O4)3(4,4'-bipy)4] T2 - 6. Interdisziplinäres Doktorandenseminar T2 - 6. Interdisziplinäres Doktorandenseminar CY - Berlin, Germany DA - 2012-02-26 PY - 2012 N1 - Geburtsname von Batzdorf, Lisa: Tröbs, L. - Birth name of Batzdorf, Lisa: Tröbs, L. AN - OPUS4-25495 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -