<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>17859</id>
    <completedYear/>
    <publishedYear>2008</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>154</pageFirst>
    <pageLast>161</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>112</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Origin of templating processes in polypyrrole synthesis</title>
    <abstract language="eng">The supermolecular mechanism of the template-mediated oxidative polymerization of pyrrole is investigated in detail. It is shown for the first time that 2,5-bis(pyrrol-2-yl)pyrrolidyl complexes with aromatic sulfonic acids such as %#946;-naphtalenesulfonic acid or para-toluenesulfonic acid are formed in the early polymerization step. The crystalline acidbase complexes are isolated and their crystal structures are analyzed. A 2,5-bis(pyrrol-2-yl)pyrrolidyl cation is common to both complexes and forms an inner salt with the sulfonic acid anion. As concluded from NMR investigations the synthesis using sulfonic acids results in a high stereo selectivity with respect to the trans conformation of the pyrrolidyl ring compared with the classical synthesis routine of this compound using hydrochloric acid. The needle-like crystals of the complexes act as hard templates during the next step of the polymerization and result in tubular morphologies of the polypyrrole.</abstract>
    <parentTitle language="eng">Materials chemistry and physics</parentTitle>
    <identifier type="old">19953</identifier>
    <identifier type="doi">10.1016/j.matchemphys.2008.05.057</identifier>
    <identifier type="issn">0254-0584</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">11.09.2008</enrichment>
    <author>I. Díez</author>
    <author>Franziska Emmerling</author>
    <author>Frank Malz</author>
    <author>Christian Jäger</author>
    <author>B. Schulz</author>
    <author>I. Orgzall</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polypyrrole</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Pyrrole complex</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>
