Reactions and properties of some trimethyleneplatinum(IV) complexes: X. Reaction with iodide and thiocyanate ions |
| |
| Authors: | Graeme E. Riley Charles F.H. Tipper Richard J. Puddephatt |
| |
| Affiliation: | Donnan Laboratories, The University, P.O. Box 147, Liverpool L69 3BX Great Britain;Department of Chemistry, University of Western Ontario, London, N6A 5B7 Canada |
| |
| Abstract: | The reaction between the platinacyclobutanes [H2)L2] (X Cl, Br; L C5H5N, 4-CH3C5H4N; R, R′ H, CH3; R H, R′ CH3, C6H5) and iodide and thiocyanate ions in methyl cyanide solution has been studied. The C3 moiety is eliminated as the cyclopropane and the process is first order with respect to the platinacyclobutanes and zero to half order with respect to the salt (MY). With the iodides the rate increases in the order Li < Na < K, Et4N, and methyl substitution in the cyclobutane ring reduces the rate of reaction with Et4NI. Added pyridine retards the reaction when L C5H5N (X Cl; R, R′ H) and added dimethylsulphoxide accelerates it.The mechanism suggested involves dissociation of an L ligand and attack of Y? ions and of M+Y? ion pairs on the five-coordinate intermediate formed. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
