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nido ‐Five‐Vertex Clusters: In and Out of Boron Chemistry
Author(s) -
Canac Yves,
Bertrand Guy
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200301648
Subject(s) - borane , boranes , boron , vertex (graph theory) , chemistry , valence (chemistry) , carborane , planar , crystallography , computational chemistry , stereochemistry , combinatorics , organic chemistry , mathematics , catalysis , computer science , graph , computer graphics (images)
During the early days of borane chemistry B 5 H 9 was considered to be the stable pentaborane and although a BH vertex is isolobal with a naked P vertex, it is only recently that the first nido ‐five‐vertex compounds with a naked phosphorus atom at the apical position were discovered. The most recent example is a valence isomer of the hitherto unknown triphosphacyclopentadienyl cation. These results shed light on the relative stability of planar and three‐dimensional Cp + derivatives (see picture).