Premium
Ruthenium Complexes of the Scorpionate Ligand Bis(3,5‐dimethylpyrazol‐1‐yl)dithioacetate and the Effect of Nitric Oxide Coordination
Author(s) -
Ortiz Mayreli,
Penabad Ariadna,
Díaz Alicia,
Cao Roberto,
Otero Antonio,
Antiñolo Antonio,
Lara Agustín
Publication year - 2005
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200401062
Subject(s) - chemistry , dichloromethane , ruthenium , ligand (biochemistry) , ethylenediamine , coordination complex , medicinal chemistry , inorganic chemistry , catalysis , organic chemistry , metal , solvent , biochemistry , receptor
Six new ruthenium( II ) complexes with the scorpionateligand bis(3,5‐dimethylpyrazol‐1‐yl)dithio‐κ 3 N , N , S ‐acetate (bdmpzdta) were obtained by treatment of the ligand with RuCl 3 or [RuCl 3 (NO)] in 1:1 or 2:1 molar ratios in the presence or absence of ethylenediamine. In all six complexes the pyrazolic rings lie in the equatorial plane. The mononitrosyl complexes present a sharp ν(NO) band in the range 1864–1859 cm –1 for samples prepared either as KBr tablets or dichloromethane solutions. In the case of [Ru(NO)(bdmpzdta) 2 ]Cl ( 7 ), the dithiocarboxylate group of one of the ligands is not coordinated (κ 2 N , N ). In the other five complexes, however, bdmpzdta behaves as a κ 3 N , N , S scorpionate ligand. When the complexes obtained from RuCl 3 were dissolved in dichloromethane and NO was bubbled through the solution, a high degree of coordination of NO + was observed, according to IR, UV and voltammetric studies. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)