92622-88-3Relevant articles and documents
X-ray crystal and molecular structure of bis(biphenylyl-2)tin(IV) dichloride, a discrete, molecular, organotin chloride
Baxter,Holt,Zuckerman
, p. 255 - 259 (1985)
Bis(biphenylyl-2)tin(IV) dichloride forms clear, diamond-shaped, monoclinic crystals, mp 165-166°C, in the space group P21/n with a = 13.039 (5) A?, b = 14.173 (4) A?, c = 11.478 (4) A?, β = 90.83 (3)°, V = 2120.8 (12) A?3, Z = 4, and ρcalcd = 1.553 g cm-3. The structure was determined from 4503 reflections collected on a Syntex P3 automated diffractometer with monochromatic Mo Kα radiation (λα = 0.71069 A?) and refined to a final R value of 5.0% for the 2754 reflections included in the least-squares sums. The monomeric molecules are well separated in space with the nearest Cl?Sn contacts at 6.189 (3) A?. The title compound is thus the first tin dihalide to form a monomeric solid. The angles at the badly distorted tetrahedral tin(IV) atom are in the expected order Cl(1)-Sn-Cl(2) [99.71 (9)°] a higher coordinated, chloride-bridged structure, are in this case produced by the steric requirements of the bulky organic ligand.
