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Molecular, Shell‐Like Dilithium (Silyl)phosphanediide and Dilithium (Silyl)arsanediide Aggregates with an [Li 6 O] 4+ Core
Author(s) -
Driess Matthias,
Pritzkow Hans,
Martin Stefan,
Rell Stefan,
Fenske Dieter,
Baum Gerhard
Publication year - 1996
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199609861
Subject(s) - dilithium , silylation , lithium (medication) , octahedron , crystallography , chemistry , organic chemistry , crystal structure , ion , catalysis , medicine , endocrinology , deprotonation
Lithium‐rich main group element clusters characterize the title compounds 1 and 2 (right: structure of 1 without silyl substituents; back = P,O, white = Li), which are obtained by lithiation of the appropriate primary silylphosphane and silylarsane, respectively, with two equivalents of n BuLi in the presence of Li 2 O. The frameworks of 1 and 2 are topologically best described as two interpenetrating shells of silylated P or As dianions and Li cations, with a formal charge of −4, which encapsulate a [Li 6 O] 4+ octahedron.