Coordination Chemistry of an Unsymmetrical Naphthyridine-Based Tetradentate Ligand toward Various Transition-Metal Ions
详细信息 查看全文
- 作者：Bing-Chen Tsai ; Yi-Hung Liu ; Shie-Ming Peng and Shiuh-Tzung Liu
- 刊名：European Journal of Inorganic Chemistry
- 出版年：2016
- 出版时间：June 2016
- 年：2016
- 卷：2016
- 期：17
- 页码：2783-2790
- 全文大小：1185K
- ISSN：1099-0682c
文摘
An unsymmetrical ligand, 2-(2-pyridinyl)-7-(pyrazol-1-yl)-1,8-naphthyridine (L5) was prepared for the construction of a series of dinuclear complexes. Treatment of L5 with [Ru2(µ-OAc)4Cl] followed by anion metathesis afforded [(L5)(µ-OAc)3Ru2](PF6) (3). Reaction of L5 with 2 equiv. of Ni(OAc)2 provided [Ni4(L5)2(µ-OH)4(CF3COO)2](CF3COO)2 (5). Reaction of [Re2(CO)8(CH3CN)2] with L5 in a refluxing chlorobenzene solution gave a mixture of dirhenium (6) and monorhenium (7) complexes. The monocobalt complex 8 was obtained from complexation of L5 with CoCl2. These new complexes were characterized by elemental analysis and spectroscopic techniques. The structures of complexes 3, 5 and 8 were further confirmed by X-ray crystallography. Nickel complex 5 was evaluated as a catalyst for reduction reactions involving the conversion of ester functionalities into their corresponding alcohols.