Palladium(ii) mononuclear and palladium(ii)/ruthenium(ii) heterodinuclear complexes containing 2-quinolyl-substituted (pyridine-2-carbonyl)hydrazone

Asami Mori; Takayoshi Suzuki; Yuichi Nakatani; Yukinari Sunatsuki; Masaaki Kojima; Kiyohiko Nakajima

doi:10.1039/c5dt02345a

Palladium(ii) mononuclear and palladium(ii)/ruthenium(ii) heterodinuclear complexes containing 2-quinolyl-substituted (pyridine-2-carbonyl)hydrazone

Dalton Trans. 2015 Sep 28;44(36):15757-60. doi: 10.1039/c5dt02345a. Epub 2015 Aug 13.

Authors

Asami Mori¹, Takayoshi Suzuki, Yuichi Nakatani, Yukinari Sunatsuki, Masaaki Kojima, Kiyohiko Nakajima

Affiliation

¹ Department of Chemistry, Faculty of Science, Okayama University, Okayama 700-8530, Japan. suzuki@okayama-u.ac.jp.

PMID: 26270329
DOI: 10.1039/c5dt02345a

Abstract

A reaction of [PdCl2(cod)] (cod = 1,5-cyclooctadiene) and an E/Z mixture of quinoline-2-carbaldehyde (pyridine-2-carbonyl)hydrazone (HL) gave two kinds of Pd(II) mononuclear complexes, [PdCl(Z-L-κ(3)N,N',N'')] (1) and [PdCl2(E-HL'-κ(2)N,N')] (2), where L(-) is the deprotonated hydrazonate anion and HL' is the quinolinium-hydrazonate zwitterionic form of HL. Complex 2 is gradually converted to 1 in solution, and complex 1 is a good precursor to prepare a Pd(II)/Ru(II) heterodinuclear complex bridged by hydrazonate, trans(Cl,Cl)-[RuCl2(PPh3)2(μ-L)PdCl] (3).