Synthesis, characterization, structure and redox property of azo-amido and orthometallated azo-imine platinum(II) complexes

Jahar Lal Pratihar*, Paritosh Mandal, Chia Her Lin

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)

摘要

The reaction of the ligands bis-2,2′-(N-alkylamino)azobenzene, 1a–c, with K2[PtCl4] in a 1:1 ratio in methanol afforded two types of Pt(II) complexes, 2a–b and 2c. Ligands 1a–b give new Pt(II) amido azo complexes, whereas 1c forms an unexpected orthoplatinated azo imine complex through the unusual oxidative dehydrogenation of one secondary amine (–CH2–NH–) group of the ligand into an imine (–CH[dbnd]N–) function. All three complexes were characterized by 1H NMR and IR spectroscopy, together with elemental analysis. Furthermore, the solid-state structures of two complexes (2a and 2c) were determined using single crystal X-ray diffraction analysis. The diffraction analysis revealed that the ligand 1a binds with the Pt(II) ion in a monoanionic terdentate (N,N,N) fashion, offering a distorted square planar geometry where the fourth coordination site is satisfied by one chloride ligand. In contrast, the 1c ligand binds with the Pt(II) ion in a bi-anionic tetradentate (C,N,N,N) fashion, offering a distorted square planar geometry. Several weaker non-covalent forces are responsible for altering the molecular packing in the lattice. The redox properties of the new complexes were also examined.

原文英語
文章編號114102
期刊Polyhedron
173
DOIs
出版狀態已發佈 - 2019 11月 15
對外發佈

ASJC Scopus subject areas

  • 物理與理論化學
  • 無機化學
  • 材料化學

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