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anti-2,2,3,3,6,6,7,7,10,10,11,11,14,14,15,15-Hexadeca-methyl-2,3,6,7,10,11,14,15-octa-silapenta-cyclo-[10.4.2.2(4,9).0(5,8).0(13,16)]icosa-1(17),4,8,12(18),13(16),19-hexa-ene

anti-2,2,3,3,6,6,7,7,10,10,11,11,14,14,15,15-Hexadeca-methyl-2,3,6,7,10,11,14,15-octa-silapenta-cyclo-[10.4.2.2(4,9).0(5,8).0(13,16)]icosa-1(17),4,8,12(18),13(16),19-hexa-ene

Yuki Toma, Kyohei Otsuka, Soichiro Kyushin

Acta Crystallogr Sect E Struct Rep Online. 2013 Mar 1;69(Pt 3):o341.

PMID: 23476535

Abstract:

The title compound, C28H52Si8, was synthesized by condensation of two mol-ecules of 1,2,3,4-tetra-kis-(chloro-dimethyl-sil-yl)benzene with lithium. The 3,4-disila-1,2-benzocyclo-butene rings in the centrosymmetric molecule are bridged by 1,1,2,2-tetra-methyl-disilanylene chains with an anti conformation. The benzene rings are deformed by fusion with a 3,4-disilacyclo-butene ring resulting in a slight boat conformation. Two Si-C bonds are bent to reduce the steric repulsion between the methyl groups on the two Si atoms and the methyl groups on another two Si atoms.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP108698028	Methyl all-cis-7,10,13,16,19-docosapentaenoate		108698-02-8	Price

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