Synthesis and Characterization of Substituted Pyridine Complexes of Molybdenum (Ⅳ). Oxotrichlorobis(substituted pyridine) molybdenum (Ⅴ)

몰리브덴의 피리딘계 착물합성과 그 성질 (제4보) 옥소삼클로로비스(치환피리딘)몰리브덴 (V)

  • Chang Su Kim (Department of Chemistry, College of Education, Daegu University) ;
  • Sang Oh Oh (Department of Chemistry, Kyungpook National University)
  • 김창수 (대구대학교 사범대학 화학과) ;
  • 오상오 (경북대학교 자연과학대학 화학과)
  • Published : 1982.12.30

Abstract

Green crystalline salts of substituted pyridinium oxopentachloromolybdates(V) were obtained from concentrated hydrochloric acid solution of molybdenum(V)-thiocyanate extract. $MoOCl_3(X-py)_2$ (X-py were 4-and 3-cyanopyridine, 2-amino-4-picoline and 4-acetylpyridine) were obtained by reflux of the corresponding substituted pyridinium salts of oxopentachloromolybdates(Ⅴ) in absolute ethanol. ($X-pyH_2$)[$MoOCl_5$]$H_2$O containing the $MoO^{3+}$ group are dissolved and hydrolysed in water but $MoOCl_3(X-py)_2$ are insoluble in water, alcohol and acetone. The complexes are paramagnetic compounds.

옥소클로로몰리브덴(Ⅴ)산 치환피리딘늄의 초록색결정은 몰리브덴(V)-티오시안산 추출용액의 진한 염산용액에서 얻었다. $MoOCl_3(X-py)_2$(X-py는 4-시아노피리딘, 3-시아노피리딘, 2-아미노-4-피코린 및 4-아세틸피리딘)은 무수알코올에서 ($X-pyH_2$)[$MoOCl_5$]$H_2$O을 환류시켜 염화수소를 날려보낸 다음 얻었다. $MoO^{3+}$를 가지는 (X-pyH)$_2$[MoOCl]$_5$$H_2$O는 물에 용해되어 가수분해되나 MoOCl$_3$(X-py)$_2$는 알코올 및 아세톤등에 녹지 않았다. (X-pyH)$_2$[MoOCl]$_5$$H_2$O는 상자성의 전해질이나 MoOCl$_3$(X-py)$_2$는 상자성의 비전해질 착물임을 알았다.

Keywords

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