168775-67-5Relevant academic research and scientific papers
Adduct formation between (Ph3SbI)2O and I2
Almond, Matthew J.,Drew, Michael G.B.,Rice, David A.,Salisbury, Gavin,Taylor, Michael J.
, p. 265 - 269 (1996)
The compound 4[(Ph3SbI)2O] · I2 (1) has been obtained by the addition of an I2 solution in acetonitrile containing ca. 5% water to a solution of triphenylantimony in the same solvent. 1 crystallises in the rhombohedral crystal system. The unit cell contains 12 molecules of (Ph3SbI)2O and four diiodine molecules. The I2 molecules link IPh3SbOSbPh3I molecules to form a one-dimensional chain, while the remaining molecules of IPh3SbOSbPh3I are not coordinated to I2. The geometry of the IPh3SbOSbPh3I unit, in which the Sb-O-Sb bridge is linear, is relatively little perturbed upon coordination, but the I2 unit shows a significant lengthening of the I-I bond compared with free diiodine. This bond lengthening is reflected in the Raman spectrum of 1 which displays v(I-I) at 174 cm-1, representing a decrease of 40 cm-1 from the position of the fundamental vibration of the free diatomic molecule.
Recognition of linear and bent forms of solid μ-oxo-bis(Ph3SbI)2O
Taylor, Michael J.,Baker, L-J.,Rickard, Clifton E. F.,Surman, Peter W. J.
, p. C14 - C16 (2007/10/03)
Two quite different shapes of the (Ph3SbI)2O molecule are found in separate crystals, namely 1a, in which the Sb-O-Sb bridge is linear with bond distances of 1.9410-1.9437(6) Angstroem and 1b in which the Sb-O-Sb angle is 144.6(4) deg and the Sb-O bonds a
