Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Synthesis and Characterization of Substituted Quinoline Complexes of Molybdenum(I) Oxo Molybdenum(V) Complexes of Substituted 8-Quinolinols

몰리브덴(V)의 퀴놀린계 착물합성과 그 성질 (제1보) 치환-8-퀴놀린올의 옥소몰리브덴 (V) 착물

  • Lee Kwang (Department of Chemistry, Keimyung University) ;
  • Sang-Oh Oh (Department of Chemistry, Kyungpook National University)
  • 이광 (계명대학교 자연과학대학 화학과) ;
  • 오상오 (경북대학교 자연과학대학 화학과)
  • Published : 1985.08.20
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Abstract

Oxo molybdenum (V) complexes of substituted 8-quinolinols were synthesized and characterized by means of the investigation of elemental analysis, infrared spectra, electron spectra, electric conductivity and mass spectrometry compared with oxo molybdenum (VI) complexes. Oxo molybdenum(V) complexes were nonelectrolyte and one strong band of stretching mode of molybdenum and terminal oxygen appeared approximately $940cm^{-1}$. Oxo molybdenum(VI) complexes gave two peaks corresponding molybdenum containing ions, a molecular ion (I) of a 2 : 1 (ligand : metal) chelate and a fragment ion (II) of a 1:1 chelate due to the loss of ligand radical from ion (I). Molybdenum(V) complexes were observed the fragment ion(II) of a 1 : 1 chelate partly. The electronic spectra corresponding to d-d transition and charge transfer transition were observed and interpreted.

치환 8-퀴놀린올의 옥소몰리브덴(V)착물을 합성하고 착물의 원소분석, 자외선스펙트럼, 전자스펙트럼 및 전도도를 측정하였고 옥소몰리브덴(VI)착물과 함께 질량분석을 행하여 비교 검토하였다. 옥소몰리브덴(V) 착물은 비전해질이고 몰리브덴-산소의 신축진동은 $940cm^{-1}$ 부근에서 강한 흡수띠가 나타나고 결정장전이와 전하이동 전이가 일어났다. 질량분석 결과로 Mo(V, VI)착물에서 몰리브덴과 리간드의 조성이 1:2임을 확인할 수 있었고 옥소몰리브덴(VI)착물에서는 1:1조성의 착물의 질량수가 나타나지만 옥소몰리브덴(V)에서는 일부만 확인되었다.

Keywords

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