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Synthesis and Molecular Structure of the Solvent‐Free [LiN(SiMe 3 )(2,6 i Pr 2 C 6 H 3 )] 2 Dimer
Author(s) -
Kennepohl Dietmar K.,
Brooker Sally,
Sheldrick George M.,
Roesky Herbert W.
Publication year - 1991
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.19911241013
Subject(s) - chemistry , dimer , solid state , solvent , crystallography , stereochemistry , molecule , hexane , x ray crystallography , organic chemistry , physics , diffraction , optics
[LiN(SiMe 3 )Ar] 2 ( 1 , Ar = 2,6‐ i Pr 2 C 6 H 3 ) is prepared by the reaction of HN(SiMe 3 )Ar with n BuLi in n ‐hexane. This compound with an unusual structure contains a four‐membered [LiN] 2 heterocycle with two solvent‐free two‐coordinate Li centers. Its molecular structure represents the first solid‐state X‐ray analysis of an uncomplexed [LiN] 2 dimer.