Reduction of RuQ₃ (1a, Q = 8-quinolinolato) with Zn/Hg in the presence of various π-acceptor ligands in ethanol affords RuQ₂L₂ (L₂ = (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. Copyright © 2008 Elsevier B.V. All rights reserved.
CitationLeung, C.-F., Wong, C.-Y., Ko, C.-C., Yuen, M.-C., Wong, W.-T., Wong, W.-Y., & Lau, T.-C. (2009). 8-quinolinolato complexes of ruthenium(II) and (III). Inorganica Chimica Acta, 362(4), 1149-1157. doi: 10.1016/j.ica.2008.05.036
- Nitrogen ligands