
TY  - JOUR
A1  - Dakternieks, D 
A1  - Hoskins, BF 
A1  - Rolls, CL 
T1  - Investigation of Isomer Formation of Triorganotin(IV) Complexes Involving Diorganophosphino-N-Phenyl(Thioformamide) Ligands: The Crystal and Molecular-Structure of [Diphenylphosphino-N-Phenyl(Thioformamido)]Triphenyltin, Ph<sub>3</sub>Sn[Ph<sub>2</sub>PC(S) NPh ]
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1988
VL  - 41
IS  - 2
SP  - 195
EP  - 202
KW  - 
UR  - https://doi.org/10.1071/CH9880195 
N2  - The isomer of Ph3Sn[Ph2PC(S) NPh] formed depends on the method of preparation. The crystal and molecular structure of the tin(IV) complex Ph3Sn[Ph2PC(S) NPh ] has been established by single-crystal X-ray diffraction techniques. The crystals are monolinic, space group P21/n, a 12.620(2), b 10.541(2), c 24.292(4)&#506;, &#946; 96.90(1) with Z 4; R and Rw were 0.031 and 0.034 respectively for 5632 unique reflections with I > 3&#963;(I). The crystals consist of discrete Ph3Sn[Ph2PC(S) NPh ] molecules. There is a tetrahedral environment about the tin atom formed by the three phenylic carbons and a sulfur atom of the [Ph2PC(S) NPh ]- ligand . Comparisons are made with the structurally similar compound Ph3Sn[(c-C6H11)2PC(S) NPh ]. On the basis of these comparisons and on earlier n.m.r . data, a favoured four-centered mechanism for insertion of dipolar PhNCS into the tin-phosphorus bond of Ph3SnPPh2 is inferred. Differences in reactivity of Ph2PC(S)N(H)Ph and (c-C6H11)2PC(S)N(H)Ph appear to result from electronic rather than steric effects. 
ER  -

