Synthesis and crystal structures of cobalt(III) complexes containing pyridine-2-selenolato and its oxidation products

Masakazu Kita, Hiroshi Tamai, Fumi Ueta, Akira Fuyuhiro, Kazuaki Yamanari, Kiyohiko Nakajima, Masaaki Kojima, Katsuo Murata, Shinsuke Yamashita

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12 Citations (Scopus)

Abstract

A series of mixed cobalt(III) complexes [Co(pySe)3-n(N-N)n]n+ [pySe = pyridine-2-selenolato (1-); N-N = 1,2-ethanediamine (en) and 2,2′-bipyridine (bpy); n = 0, 1 and 2] was prepared. The geometrical preference and trans influence of pySe are fairly different from those of pyridine-2-thiolate. These selenolato complexes were oxidized by peracetic acid to give the corresponding pyridine-2-seleninato (pySeO2) and pyridine-2-selenonato (pySeO3) complexes. The crystal structures of the pySeO2 and pySeO3 complexes revealed that the coordination mode change from an original N,Se-four-membered to the N,O-five-membered chelate ring occurred during oxidation and intramolecular hydrogen bonds between the non-coordinated oxygen of pySeO2 or pySeO3 and the amine protons of en stabilize the N,O-coordination mode.

Original languageEnglish
Pages (from-to)139-146
Number of pages8
JournalInorganica Chimica Acta
Volume314
Issue number1-2
DOIs
Publication statusPublished - Mar 19 2001
Externally publishedYes

Keywords

  • Cobalt(III) complexes
  • Pyridine-2-seleninato
  • Pyridine-2-selenolato
  • Pyridine-2-selenonato
  • Selenolato complexes
  • X-ray crystal structure

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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  • Cite this

    Kita, M., Tamai, H., Ueta, F., Fuyuhiro, A., Yamanari, K., Nakajima, K., Kojima, M., Murata, K., & Yamashita, S. (2001). Synthesis and crystal structures of cobalt(III) complexes containing pyridine-2-selenolato and its oxidation products. Inorganica Chimica Acta, 314(1-2), 139-146. https://doi.org/10.1016/S0020-1693(01)00304-8