Hexamethyl distannane

The molecular structure of compound 84 in the gaseous phase was analysed by electron diffraction. It has chair conformation with Cs symmetry. The axial methyl groups are twisted outwards to relieve steric repulsion259. The symmetry of gaseous tetraphenyl-germane is debatable on the basis of its electron diffraction spectrum260. Hexamethyl-distannane (MesSnSnMes) has D3 symmetry in the gas phase, as shown by electron diffraction261. 

Recent examples include the insertion of platinum into the Sn—Sn bond of hexamethyl-distannane (equation 116) and of a distannaferrocenophane, 90 (equation 117)273,274. 

Acetylated 2-, 3- and 4-deoxypyranosyl radicals can be generated similarly, by photolysis of hexamethylditin (hexamethyl distannane, (043)380-80(043)3) in the presence of the appropriate bromodeoxy or iododeoxy precursor, the reaction being a bromine atom abstraction by (C4l3)38n. Their splitting patterns were entirely as expected for 71-type radicals with the trivalent carbon sp hybridised, the unpaired electron in a p orbital and the sugar in a Ci conformation. ... 

CnHisCl,]- H (CH3)3C..,j4y (CH3)3C Cl Photolysis of hexamethyl distannane in solution containing corresp. allyl bromide/ Cyclopentane EPR/ 273 H(2) 2.1 77Ber3... 

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