8-Quinolinolato complexes of ruthenium(II) and (III)
摘要:
Reduction of RuQ(3) (1a, Q = 8-quinolinolato) with Zn/Hg in the presence of various pi-acceptor ligands in ethanol affords RuQ(2)L(2) (L-2 = (dimethylsulfoxide)(2) (2); (4-picoline)(2) (3); N,N'-dimethyl-1,4-diazabuta-1,3-diene, dab (4); cyclooctadiene, COD (5); norborna-2,5-diene, nbd (6)). Compound 6 is isolated as an equimolar mixture of cis, trans (6a) and trans, cis (6b) isomers, which can be separated by column chromatography. DFT calculations have been performed on 6a and 6b. Oxidation of 3 and 6b affords the corresponding ruthenium(III) species 7 and 8, respectively. The structures of 2, 3, 4 and 6 have been determined by X-ray crystallography. (C) 2008 Elsevier B. V. All rights reserved.
8-Quinolinolato complexes of ruthenium(II) and (III)
摘要:
Reduction of RuQ(3) (1a, Q = 8-quinolinolato) with Zn/Hg in the presence of various pi-acceptor ligands in ethanol affords RuQ(2)L(2) (L-2 = (dimethylsulfoxide)(2) (2); (4-picoline)(2) (3); N,N'-dimethyl-1,4-diazabuta-1,3-diene, dab (4); cyclooctadiene, COD (5); norborna-2,5-diene, nbd (6)). Compound 6 is isolated as an equimolar mixture of cis, trans (6a) and trans, cis (6b) isomers, which can be separated by column chromatography. DFT calculations have been performed on 6a and 6b. Oxidation of 3 and 6b affords the corresponding ruthenium(III) species 7 and 8, respectively. The structures of 2, 3, 4 and 6 have been determined by X-ray crystallography. (C) 2008 Elsevier B. V. All rights reserved.