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Increasing the Lability of Polarised Phosphorus–Phosphorus Bonds
Author(s) -
Burck Sebastian,
Gudat Dietrich,
Nieger Martin,
Vinduš Denis
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700964
Subject(s) - chemistry , borane , lability , lewis acids and bases , phosphorus , electrophile , medicinal chemistry , electrophilic addition , bond cleavage , phosphorus trichloride , frustrated lewis pair , inorganic chemistry , polymer chemistry , organic chemistry , catalysis
Diphosphanes with polarised P–P bonds react readily with Lewis acids like borane, gallium trichloride, or with elemental selenium, to give products arising from electrophilic attack at the more basic phosphorus atom and consecutive bond cleavage. Spectroscopic studies proved that the initial reaction with borane proceeds under preservation of the P–P bond to give a transient phosphane–borane which rearranged below ambient temperature. The results suggest that Lewis acid coordination decisively enhances the weakening of the polarised P–P bond. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)