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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 49-50, 1990 - Issue 1-4
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Section 1: Synthesis, Structure, Stereochemistry and Reactivity of Organophosphorus Compounds

Novel Properties of Iodophosphonium Ions: Kinetically Labile Behaviour and Secondary Bonding

M. Bätcher Fachbereich Chemie, Universität Oldenburg Carl-von-Ossietzky-Strasse 9-11, D-2900, Oldenburg, F.R. Germany
,
W.-W. Du Mont Fachbereich Chemie, Universität Oldenburg Carl-von-Ossietzky-Strasse 9-11, D-2900, Oldenburg, F.R. Germany
,
S. Pohl Fachbereich Chemie, Universität Oldenburg Carl-von-Ossietzky-Strasse 9-11, D-2900, Oldenburg, F.R. Germany
&
W. Saak Fachbereich Chemie, Universität Oldenburg Carl-von-Ossietzky-Strasse 9-11, D-2900, Oldenburg, F.R. Germany
Pages 147-150 | Published online: 04 Oct 2006
 
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Abstract

Neutral species R3PX2 in equilibria with halogenophosphonium halides R3PX+X− do not always contain hypervalent phosphorus (10-P-5)! Iodophosphonium ions R3PI+ show R3P-I… X interaction in many cases, leading to hypervalent iodine (10-I-2). Evidence for secondary IX bonds is provided by n.m.r. spectra and X-ray crystal structure determinations.

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