32538-47-9Relevant academic research and scientific papers
Cyclic 1,8-napththalenediyl compounds containing group 14 hetero atoms
Tinga, Markus A. G. M.,Buisman, Godfried J. H.,Schat, Gerrit,Akkerman, Otto S.,Bickelhaupt, Friedrich,et al.
, p. 137 - 146 (2007/10/02)
Reaction of 1,8-naphthalenediylmagnesium with dimethylgermanium dichloride gave only dimethyl(1,8-naphthalenediyl) germanium (7), whereas use of 1,8-dilithionaphthalene gave a mixture of products, consisting mainly of 7 and its "dimer" 7,7,14,14-tetramethyldinaphtho digermocin (8).The silicon analogue (12) of 8 was prepared in a two-step procedure, starting from 1,8-dilithionaphthalene and 1,1,2,2-tetrachloro-1,2-dimethyl-disilane.The molecular structures of 8 and 12 were determined by single crystal X-ray diffraction studies.Both structures are centrosymmetric.The central eight-membered rings containing the (CH3)2E moieties (E=Si, Ge) have a chair-like conformation.The naphthalene rings are quasi-coplanar and show strong out-of-plane distortions which are larger for 12 than for 8.Keywords: Naphthalenediyl; Lithium; Silicum; Germanium; Crystal structure
