Media type: E-Article Title: Structural and 31P NMR solution studies on some cyclic triphosphenium ions and their 2‐arsa‐analogues Contributor: Barnham, Rachel J.; Deng, Robert M. K.; Dillon, Keith B.; Goeta, Andrés E.; Howard, Judith A. K.; Puschmann, Horst Published: Wiley, 2001 Published in: Heteroatom Chemistry, 12 (2001) 6, Seite 501-510 Language: English DOI: 10.1002/hc.1077 ISSN: 1042-7163; 1098-1071 Keywords: General Chemistry Origination: Footnote: Description: <jats:title>Abstract</jats:title><jats:p>Several new cyclic triphosphenium ions and their 2‐arsa‐analogues have been identified in solution by <jats:sup>31</jats:sup>P NMR spectroscopy. The crystal and molecular structures of the cations <jats:bold>1a,b</jats:bold>, as their hexachlorostannate (IV) salts have shown that the five membered heterocyclic rings are planar, whereas the cation <jats:bold>9b</jats:bold> as its diphosphanedioxide‐bis[pentachlorostannate(IV)] salt is nonplanar, like its saturated phosphorus counterpart. <jats:chem-struct-wrap><jats:chem-struct><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink" mimetype="image/jpeg" position="anchor" specific-use="enlarged-web-image" xlink:href="graphic/must001.jpg"><jats:alt-text>magnified image</jats:alt-text></jats:graphic></jats:chem-struct></jats:chem-struct-wrap> © 2001 John Wiley & Sons, Inc. Heteroatom Chem 12:501–510, 2001</jats:p> Access State: Open Access