New thiocarbonyl complexes of ruthenium
- 1 January 1974
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 11,p. 1134-1139
- https://doi.org/10.1039/dt9740001134
Abstract
Reaction of the complex [RuCl2(CS)(PPh3)2]2, (I), with MCl–HCl in acetone leads to chloride-bridge cleavage with formation of M[RuCl3(CS)(PPh3)2](M = Ph4As+, Ph3(PhCH2)P+, or Et4N+), (II). Areinvestigation of the reaction between the complex [RuCl2(PPh3)3] and CS2 reveals that, in addition to the previously reported [RuCl(η-CS2)(PPh3)3]Cl and (I), another thiocarbonyl complex, (III), with very similar physicochemical properties to (I) is also formed. Full analytical data and 31P n.m.r. studies, together with an X-ray crystallographic study, show that complex (III) is the tri-µ-chloro-species [(PPh3)2ClRuCl3Ru(CS)(PPh3)2]. Although no evidence has been found for conversion of complex (I) into (III), prolonged shaking of an acetone solution of (I) gives a small amount of [(PPh3)(CS)ClRuCl3Ru(CS)(PPh3)2],Me2CO, (IV). Reaction of complex (III) with concentrated hydrochloric acid gives paramagnetic [(PPh3)Cl2RuCl3Ru(CS)(PPh3)2],2Me2CO, (V), which contains ruthenium in formal oxidation states of (III) and (II).Keywords
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