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Z. Naturforsch. 2013,
68b, 993 – 999
doi:10.5560/ZNB.2013-2344
Syntheses, Crystal Structures and Electrochemical Properties of Acetylacetonato-Ruthenium Complexes Containing Substituted Pyridine Ligands
1 Department of Applied Chemistry, School of Petrochemical Engineering, Changzhou University, Jiangsu 213164, P. R. China
2 Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma'anshan, Anhui 243002, P. R. China
Reprint requests to Dr. Qian-Feng Zhang. Fax: +86-555-2312041. E-mail:
zhangqf@ahut.edu.cn
Received December 31, 2012 / published online September 4, 2013
Treatment of Ru(acac)3 with 2-cyano-pyridine and 3,5-dimethyl-pyridine in the presence of zinc dust as reducing agent in refluxing THF afforded the ruthenium(II) complexes cis-[RuII(acac)2(2-CN-py)2] (1) and cis-[RuII(acac)2(3,5-Me2-py)2] (2), respectively. Interaction of Ru(acac)3 with 3-Me-pyridine and 3,5-Me2-pyridine in the presence of Br2 in refluxing THF gave the ruthenium(III) complexes [RuIII(acac)Br2(3-Me-py)2] (3) and [RuIII(acac)Br2(3,5-Me2-py)2] (4), respectively. The four complexes have been spectroscopically and
electrochemically characterized, and their crystal and molecular structures have been established by X-ray crystallography.
Key words: Ruthenium, Acetylacetonato Ligand, Pyridine, Synthesis, Crystal Structure