_P.-Powell-auth.-Principles-of-Organometallic-Chemistry-Springer-Netherlands-1988

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Fig. 3.4 (a) Unit cel! of methyllithium. The (CH,Li) 4 tetramer. (After E. Weiss and E.A.C.
Lucken. ]. Organometal. Chem. (1964) l, 197. (b) The Li 4 C 4 skeleton of the
tetramer viewed approximately along one of threefold axes. (c) Structure of
(PhLiOEt 2 ) 4 • (d) Structure of hexameric cyclohexyllithium (C.H 11 Li) 6 .2C 6 H 6 •
Cyclohexyl groups occupy six of the eight triangular faces of the
octahedron- only two shown. (e) (PhLiTMEDA) 2 •