The crystal and molecular structures of hydroxotriphenyltin(IV) and hydroxotriphenyllead(IV)

Abstract

Crystals of hydroxotriphenyltin(IV), Ph3SnOH, are orthorhombic, space group P2~2~21, having a -: 18.053 (8), b = 10.382 (5), c = 8-303 (1) A; hydroxotriphenyllead(IV), Ph3PbOH, is isomorphous with a = 17.635 (9), b --10.247 (6), c = 8.728 (4) A. The structures were solved by Patterson methods with diffractometer data and refined by full-matrix least squares to R = 0.0362 for Ph3SnOH, and R = 0.0429 for Ph3PbOH. The compounds are isostructural: the structures consist of zigzag chains parallel to c in which planar Ph3M (M = Sn, Pb) fragments are joined by OH groups: in each structure the two M-O distances are unequal, being 2. 197 (5) and 2.255 (5) A in Ph3SnOH, and 2.37 (2) and 2.44 (2) A in Ph~PbOH. Mean Sn-C and Pb-C distances are 2. 137 (10) and 2.18 (2) A respectively.

Superspace description of trimethyltin hydroxide at T = 100 K

“…Those values are comparable to the ones for triphenyl hydroxide with 177.6° and 137.8° [17] and for triethyl hydroxide with 177.9° and 145.5° [18].…”

“…The molecules are not associated via hydrogen bonds, but via Sn-O-Sn bridges between neighbouring Sn atoms [11,14], forming a rather stable polymeric chain structure. Such polymeric structures are found also for triphenyltin hydroxide and triphenyllead hydroxide [17], triethyltin hydroxide [18], trimethyltin methoxide [19], trimethyltin tetrafluoroborate [20] and trialkyltin formate [21]. In a similar way the trimethyltin chloride and trimethyltin bromide form tin-halogen-tin bridges [22].…”

Triphenyltin hydroxide as a precursor for the synthesis of nanosized tin‐doped TiO2 photocatalysts

“…Regular analyses of the outlet gas flow were carried 28 -30 and very close to that reported in the solid state (421 Hz). 35 The small signal at −87.1 ppm (integral area 8%) must correspond to Ph 3 SnOH with a monomeric tetrahedral structure, in contrast to the polymeric penta-coordinated solid state structure, with bridging OH groups, 36,37 that give rise to δ iso = −298 ppm in the solidstate 119 Sn NMR spectrum. 38 The chemical shift of the molecules in equilibrium with Ph 3 SnOH (−84.4 ppm) is in the range reported for (Ph 3 Sn) 2 O in other non-coordinating solvents (between −83.1 and −85.5 ppm), 28 -30 while solidstate spectra show two different tin signals, at δ iso ca.…”

Crystal structure of tribenzyltin(IV) hydroxide, (C7H7)3SnOH

“…One of the papers with respect to this problem [ 1 ] describes the synthesis of and differences between tribenzyltin hydroxide and bis(tribenzyltin) oxide of which the structure was published later on [2]. The crystal structure of tribenzyltin hydroxide, BzbSnOH, is iso-* e-mail: hreuter@uos.de typic to that of triphenyltin hydroxide, PluSnOH, [3,4], There are no hydrogen bridges within a chain and between adjacent chains. Similar structural features were found for BzlMe2SnOH [5] and EtjSnOH [6], whereas the structure of trimesityltin hydroxide, MesaSnOH, consists of isolated molecules with tetrahedrally coordinated tin [7].…”