TY - JOUR
T1 - Synthesis and crystal structure of bis{di-µ-hydroxobis[fac-tribromoaquotin(IV]} heptahydrate
AU - Howie, Robert Alan
AU - Skakle, Janet Mabel Scott
AU - Wardell, J. L.
PY - 2005
Y1 - 2005
N2 - A product isolated from a reaction mixture of Br-2 and Ph-3 Sn(CH2)(13)CH3 (3:1 mole ratio) in CHCl3 solution in air was bis{di-mu-hydroxobis[fac-tribromoaquotin(VI)]} heptahydrate, 2[Br-3 (H2O)Sn(mu-OH)(2) Sn(O2H)Br-3] center dot 7H(2)O, 2[fac-(1: X = Br)]. 7H(2)O. Previous reports had indicated that the tin complexes, [fac-(1: X = Cl or Br)], had been obtained in various solvated forms from hydrolysis or oxidation/hydrolysis of appropriate tin(IV) or tin(II) halides. The crystal structure determination, reported here, provides an improved refinement of the core, i.e., [fac-(1: X = Br)], of 2[fac-(1: X = Br)] center dot 7H(2)O compared to previous attempts. The solid state structure consists of a central rhomboidal planar Sn2O2 ring. The tin centres have distorted octahedral geometries, with each Br ligand trans to an 0 atom. The Br ligands, trans to the aqua ligands, form longer bonds to tin at 2.5556(7) and 2.5544(6) angstrom, than those trans to the bridging OH ligands, between 2.5021(7) and 2.5127(7) angstrom. The Br, OH and H2O ligands as well as the solvate water molecules are all involved in an extensive hydrogen bonding system in 2[fac-(1: X = Br)] center dot 7H(2)O. (c) 2005 Elsevier B.V. All rights reserved.
AB - A product isolated from a reaction mixture of Br-2 and Ph-3 Sn(CH2)(13)CH3 (3:1 mole ratio) in CHCl3 solution in air was bis{di-mu-hydroxobis[fac-tribromoaquotin(VI)]} heptahydrate, 2[Br-3 (H2O)Sn(mu-OH)(2) Sn(O2H)Br-3] center dot 7H(2)O, 2[fac-(1: X = Br)]. 7H(2)O. Previous reports had indicated that the tin complexes, [fac-(1: X = Cl or Br)], had been obtained in various solvated forms from hydrolysis or oxidation/hydrolysis of appropriate tin(IV) or tin(II) halides. The crystal structure determination, reported here, provides an improved refinement of the core, i.e., [fac-(1: X = Br)], of 2[fac-(1: X = Br)] center dot 7H(2)O compared to previous attempts. The solid state structure consists of a central rhomboidal planar Sn2O2 ring. The tin centres have distorted octahedral geometries, with each Br ligand trans to an 0 atom. The Br ligands, trans to the aqua ligands, form longer bonds to tin at 2.5556(7) and 2.5544(6) angstrom, than those trans to the bridging OH ligands, between 2.5021(7) and 2.5127(7) angstrom. The Br, OH and H2O ligands as well as the solvate water molecules are all involved in an extensive hydrogen bonding system in 2[fac-(1: X = Br)] center dot 7H(2)O. (c) 2005 Elsevier B.V. All rights reserved.
KW - tin bromide
KW - hydrolysis
KW - crystal structure
U2 - 10.1016/j.ica.2005.04.035
DO - 10.1016/j.ica.2005.04.035
M3 - Article
SN - 0020-1693
VL - 358
SP - 3283
EP - 3286
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
ER -