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Preparation and Structure of Two Highly Reactive Intermediates: [Li(thf) 4 ][Cu 5 Cl 4 R 2 ] and [Li(thf) 4 ][AlCl 3 R], R Si(SiMe 3 ) 3
Author(s) -
Heine Andreas,
Stalke Dietmar
Publication year - 1993
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.199301211
Subject(s) - lithium (medication) , chemistry , crystallography , crystal structure , medicine , endocrinology
A SiCu 2 three‐center two‐electron bond with short CuCu distance is the prominent structural feature of the lithium silylcuprate Li(thf) 4 ‐ 1 mentioned in the title compound, the first compound of this type characterized by X‐ray crystallography (in the picture the SiMe 3 substituents have been omitted). The structure of the aluminate corresponds to a frozen intermediate from the reaction of (Me 3 Si)3SiLi and AlC1 3 . The two compounds are only stable at low temperatures.