A novel cyclopalladated complex with a diferrocenyl Schiff base ligand: Synthesis, structure, electrochemical and catalytic properties.
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| Title: | A novel cyclopalladated complex with a diferrocenyl Schiff base ligand: Synthesis, structure, electrochemical and catalytic properties. |
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| Authors: | Han, Li-Min1, Ke, Chun-Long1, Zhang, Dan-Zhao1, Gao, Yuan-Yuan1, Zhu, Ning1, Xie, Rui-Jun1, Wang, Ya-Qi1, Suo, Quan-Ling1 szj010062@163.com |
| Source: | Polyhedron. Jan2015, Vol. 85, p621-626. 6p. |
| Subjects: | Metal complexes, Complex compounds synthesis, Schiff bases, Ligands (Chemistry), Chemical structure, Electrochemistry, Catalytic activity |
| Abstract: | The N-(diferrocenylmethylene)aniline Schiff base Fc 2 C = NPh ( 1 ) (Fc = ferrocenyl, Ph = phenyl) was synthesized by the reaction of diferrocenyl-methanone with aniline, and its structure was determined for the first time in this paper. The crystal structure of the novel cyclopalladated complex (Fc 2 C = NPh)PdClPPh 3 ( 2 ) was analyzed by single crystal X-ray diffraction. The structure of ligand 1 displays an anti-configuration for the ferrocenyl groups bonded to the C atom of the C N bond lying on the opposite side to the phenyl ring. The structure of complex 2 shows a four-coordinated structural type and the two ferrocenyl moieties bridged through the C atom of the C N bond remain in the anti-configuration; the structure also contains a bicyclic system of the coordinated Cp ring and a five-membered metallacycle. The electrochemical properties of ligand 1 and complex 2 were studied by cyclic voltammetry, and the results reveal that there is a stronger electronic communication between the two ferrocenyl units in 2 . The results of a catalytic evaluation show that complex 2 is highly active as a catalyst for the Suzuki C C coupling reaction and the biphenyl product gotten in this reaction can be obtained in 93% yield. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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