Oxidation of Ru-bound thiolate thioether and its NS4-ligand containing thiolate and thioether sulfur donors: synthesis, characterization, and X-ray structures

Autor: Frank W. Heinemann, Hanaa Mansour, Dieter Sellmann, Shaban Y. Shaban
Rok vydání: 2010
Předmět:
Zdroj: Journal of Coordination Chemistry. 63:2812-2820
ISSN: 1029-0389
0095-8972
Popis: A ruthenium complex [Ru(H2O){Et2NpyS4(O3)2}] · (4) containing sulfinates, sulfenates S-donors, and water as co-ligand has been synthesized from oxidation of hydrazine complex [Ru(N2H4)(Et2NpyS4)] (3) and completely characterized with X-ray structural analysis [Et2Npy = 4-(diethylamino)-2,6-bis[(2-mercaptophenyl)thiomethyl]pyridine(2−)]. Complex 4 exhibits distorted octahedral coordination of the ruthenium center and the d [Ru–Ssulfinates] and d [Ru–Ssulfenates] are almost equivalent. The average d[S–Osulfinate] at 148.0 pm is ca 10 pm longer than the average d [S–Osulfenate] at 138.0 pm. The sulfinates IR(KBr) bands are located in the range 1132–1113 cm−1 as two band sets, ν(SO)asym and ν(SO)sym, whereas the sulfenates show a single absorbance at approximately 882 cm−1. The lower frequency of the ν(SO) stretches of the sulfenates as compared to that of their sulfinate rivals indicates a weaker S–O bond in the sulfenates and is consistent with X-ray crystal structure data (vide infra). Oxidation of the dit...
Databáze: OpenAIRE
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