The Crystal Structure of the Triclinic Polymorph of Hexaphenyldistannane

Reactivity of di-n-butyl-dicyclopentadienylzirconium towards amido stabilized stannylenes

“…1). The tin-tin bond length (2.804(4) Å) compares well to standard Sn-Sn bond distances of 2.78 Å in Me 6 Sn 2 , as found in the vapour phase by GED (gas electron diffraction), and of 2.763(2) Å in Ph 6 Sn 2 [8]. On the other hand, the Sn-Sn bond distance of 4.2364 Å in the complex of Piers [1] and of 3.5567 Å in 4 [6] indicates very weak contacts in both complexes, if any.…”

C,N-chelated hexaorganodistannanes, and triorganotin(IV) hydrides and cyclopentadienides

“…The sum of the interatomic angles C-Sn-C (318.1°), is extremely small, being 328.5°for an ideal tetrahedral configuration of the tin atom. The Sn-Sn bond distance of 2.8014(13) Å is relatively short and of the same order as the Sn-Sn distance in Me 6 Sn 2 (2.78 Å) in the vapor phase, as found by gas electron diffraction, 2.763(2) Å for Ph 6 Sn 2 [28] and the Sn-Sn distance (2.804(4) Å) recently observed in our group for a distannane coordinated by zirconocene [29]. The nitrogen atom is primarily not involved in the tin atom coordination sphere, given the long Sn1-N11 bond (3.106(13) Å), even though this distance is much smaller than the sum of the Van der Waals radii.…”

Atmospheric pressure deposition of fluorine-doped SnO2 thin films from organotin fluorocarboxylate precursors

“…This contrasts with the polymeric structure adopted by the anhydrous compound, in which tin is in a six-coordinated environment. 41 The unidentate nature of the carboxylate groups is evident by the short 43 and a diorganotin derivative of a germatrane-substituted propanoic acid, 44 have been reported. However, all three structures are very different and consist of a seven-coordinate tin atom with trans-C 2 SnO 5 pentagonal bipyramidal geometry resulting from the presence of two bidentate, chelating carboxylate groups.…”