Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Synthesis and Characterization of Ni(Ⅱ) Complexes with Aminophosphine, Ni(L)X$_2$ and [Ni(L)$_2$]Cl$_2$ (L = L$_1$, L$_2$ ; X = Cl$^-$, Br$^-$, I$^-$)

Aminophosphine류 리간드가 배위된 Ni(Ⅱ) 착물, Ni(L)X$_2$ 및 [Ni(L)$_2$]Cl$_2$ (L = L$_1$, L$_2$ ; X = Cl$^-$, Br$^-$, I$^-$)의 합성과 성질

  • 정맹준 (영남대학교 화학과) ;
  • 박상규 (영남대학교 화학과) ;
  • 정민호 (구미전문대학섬유학과) ;
  • 김봉곤 (경상대학교 화학교육과) ;
  • 도명기 (영남대학교 이과대학 화학과 기초과학연구소)
  • Published : 19940400
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Abstract

Several new nickel(II) complexes, [Ni(L)X$_2$ and [Ni(L)$_2$]Cl$_2$ (L = L$_1$, L$_2$ ; X = Cl$^-$, Br$^-$, I$^-$) have been synthesized by reacting NiX$_2$ or NiX$_2$, 6H$_2$O with aminophosphines(L) wherein L is 1,2-bis{(diphenylphosphino)amino}propane(L$_1$) or 1,2-bis{(diphenylphosphino)amino}ethane(L$_2$). These complexes are characterized by the optical spectroscopic methods (UV/Vis, CD, IR, $^1$H-NMR, and $^{31}$P-NMR) together with conductometer and elemental analysis. The complex with I$^-$ is tetrahedral, where the complexes with Cl$^-$ or Br$^-$ are square planar. The complexes, [Ni(L)X$_2$](X = Cl$^-$, Br$^-$) become tetrahedral, as they react with methyl iodide. The Ni(L)X$_2$ complexes underwent solvolysis with a various organic solvents such is EtOH, DMSO, THF and DMF.

1,2-bis{(diphenylphosphino)amino}propane(L$_1$) , 1,2-bis{(diphenylphosphino)amino}ethane(L$_2$)이 배위된 니켈(Ⅱ)착물, [Ni(L)X$_2$] 및 Ni(L$_2$)Cl$_2$(L = L$_1$, L$_2$ ; X = Cl$^-$, Br$^-$, I$^-$)을 합성하고 분광학적 성질을 조사하였다. X = Cl$^-$ 또는 Br$^-$인 경우에는 사각평면형 착물의 특성을 보였고, I$^-$는 사면체형 착물의 특성을 나타내었다. 합성된 Ni(L)X$_2$착물은 극성을 가진 유기용매(EtOH, DMSO, THF 및 DMF)를 반응시켰을 때 용매의 주개 수(donor number)값에 따라 가용매분해반응이 진행됨을 전자흡수스펙트럼으로 확인하였다.

Keywords

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