Kakoti, Maushumi ; Chaudhury, Subrata ; Deb, Alok K. ; Goswami, Sreebrata (1993) Isomeric dithiocyanate complexes of ruthenium(II), synthesis, characterization of all possible bond isomers of trans,cis-Ru(CNS)2L2 [L=2-(arylazo)pyridine] and studies of isomerization Polyhedron, 12 (7). pp. 783-789. ISSN 0277-5387
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Official URL: http://dx.doi.org//10.1016/S0277-5387(00)81759-3
Related URL: http://dx.doi.org/10.1016/S0277-5387(00)81759-3
Abstract
A series of isomeric new dithiocyanate ruthenium(II) complexes of the type trans,cis-Ru(CNS)2L2[L=2-(arylazo)pyridine] have been synthesized by a stereoretentive substitution reaction from the known diaquo cationic complex trans,cis-[Ru(OH2)2L2]2+. All possible linkage isomers have been separated on a silica gel column and investigated for linkage isomerism. These isomers have been thoroughly characterized from physical properties, 1H NMR, IR and UV-vis spectroscopy. It has been shown that the most stable linkage isomer in this case is S,S bonded. Two (S,N and N,N) out of three isomers of trans,cis-Ru(CNS)2L2 are converted into the third (S,S) isomer on boiling in xylene. Similar transformations have also been observed in the solid state. Factors influencing the population of the various isomers are noted.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 12762 |
| Deposited On: | 11 Nov 2010 09:01 |
| Last Modified: | 14 Feb 2011 08:18 |
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