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The Structure of o-Hydroxyaryloxy-bis-(o-arylenedioxy)-phosphoranes and their Acid-Base Properties
Authors:E I Matrosov  D I Lobanov  N V Matrosova  M I Kabachnik  A N Nesmeyanov
Institution:Institute of Organo-Element Compounds, USSR Academy of Science , Vavilov Str. 28, Moscow , USSR
Abstract:Abstract

The crystalline phosphoranes  /></span> <span class= /></span>have been obtained. IR-, UV- and NMR spectra of phosphoranes (Ia,b) and their interaction products with nitrogen bases have been investigated. It was determined that phosphoranes have structure (I) with pentacoordinate phosphorus and phenolic hydroxy group, while their products of interactions with nitrogen bases have the ionic structure (II) with hexacoordinate phosphorus <span class= /></span> (II). The X-ray difraction approves the structure (I) for phosphorane Ib.</td>
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