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Novel Inorganic (Carbon‐Free) Chelate Rings: Tris(chelate) Compounds of [ N ‐(Diphenylphosphinoselenoyl)‐ P,P ‐diphenylphosphinoselenoic amidato‐ Se, Se′ ] with M III (M = Sb, Bi, In)
Author(s) -
CeaOlivares Raymundo,
GarcíaMontalvo Verónica,
Novosad Josef,
Woollins J. Derek,
Toscano Rubén A.,
EspinosaPérez Georgina
Publication year - 1996
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19961290807
Subject(s) - chemistry , chelation , lone pair , octahedron , crystallography , tris , ligand (biochemistry) , sulfur , metal , crystal structure , carbon fibers , stereochemistry , ion , inorganic chemistry , molecule , organic chemistry , biochemistry , materials science , receptor , composite number , composite material
The [(SePPh 2 ) 2 N] − ligand 1c forms stable tris(chelates) with the Sb III , Bi III , and In III ions. The crystal and molecular structures of the resulting compounds 3, 4 , and 5 were determined by X‐ray diffractometry. The coordination geometry around the metal centers can be described as a distorted octahedron. This feature and the results obtained by comparing the structures with their sulfur and oxygen analogs lead us to conclude that in both Sb III and Bi III compounds the arrangement around the metals suggests a stereochemically nonactive electron lone pair.