Ambient stable trigonal bipyramidal copper(III) complexes equipped with an exchangeable axial ligand

Hao Ching Chang, Feng Chun Lo, Wen Chi Liu, Tsung Han Lin, Wen Feng Liaw, Ting Shen Kuo, Way-Zen Lee

研究成果: 雜誌貢獻文章同行評審

11 引文 斯高帕斯(Scopus)

摘要

A stable trigonal bipyramidal copper(III) complex, [PPN][Cu(TMSPS3)Cl] (1, wherein PPN represents bis(triphenylphosphine)iminium), was synthesized from CuCl2/PPNCl via intramolecular copper(II) disproportionation. Under ambient conditions, the axial chloride of 1 is exchangeable in solution thus making 1 serve as an intermediate to prepare trigonal bipyramidal copper(III) derivatives, e.g., [PPN][Cu(TMSPS3)(N3)] (2) and [Cu(TMSPS3)(DABCO)] (3). Diamagnetic complexes 1-3 were fully characterized by X-ray crystallography, NMR, UV-vis, and Cu K-edge absorption spectroscopy. A series of UV-vis titrations were performed to investigate the relative ligand affinity toward the [Cu(TMSPS3)] moiety, verifying the 1:1 binding equilibrium between various ligands. Compared to known copper(III) compounds, Cu K-edge absorptions of 1-3 possess lower pre-edge energy and higher shakedown transition energy, which, respectively, attribute to the electron donation from TMSPS33- ligand and their trigonal ligand field.

原文英語
頁(從 - 到)5527-5533
頁數7
期刊Inorganic Chemistry
54
發行號11
DOIs
出版狀態已發佈 - 2015 六月 1

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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