<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>864</id>
    <completedYear/>
    <publishedYear>2000</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>8664</pageFirst>
    <pageLast>8669</pageLast>
    <pageNumber/>
    <edition/>
    <issue>36</issue>
    <volume>104</volume>
    <type>article</type>
    <publisherName>Soc.</publisherName>
    <publisherPlace>Washington, DC</publisherPlace>
    <creatingCorporation>American Chemical Society</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Proof of chirality of J-Aggregates spontaneously and enantioselectively generated from achiral dyes</title>
    <abstract language="eng">The recently published claim1,2 that the achiral 5,5',6,6'- tetrachlorobenzimidacarbocyanine chromophore spontaneously and enantioselectively generates chiral J-aggregates when it is substituted in the 1,1'-position with n-alkyl groups longer than hexyl and in the 3,3'-position with -acido-ethyl or -acido-n-propyl groups has been proved by embedding the J-aggregates of such a dye (1a) in a polymeric PVA film and measuring the CD signal at defined observation angles. Dye 1b, which is assumed to give achiral J-aggregates, has been investigated for comparison as well. Possible contibutions of linear dichroism and birefringence of ordered molecules to the measured CD signal have been excluded by careful checks using both a plain PVA film and a film containing monomers of a dye (2) of known chirality.</abstract>
    <parentTitle language="eng">The journal of physical chemistry / B</parentTitle>
    <identifier type="old">341</identifier>
    <identifier type="doi">10.1021/jp001805w</identifier>
    <identifier type="issn">1520-6106</identifier>
    <identifier type="issn">1520-5207</identifier>
    <identifier type="issn">1089-5647</identifier>
    <enrichment key="date_peer_review">02.08.2000</enrichment>
    <author>Christian Spitz</author>
    <author>Siegfried Dähne</author>
    <author>A. Quart</author>
    <author>H.-W. Abraham</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Weder Datei noch physisches Exemplar vorhanden ("No Access")</collection>
  </doc>
</export-example>
