Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Synthesis and Characterization of Square Planar Mixed-Ligand Complexes (II) : Electrophilic and Nucleophilic Reaction of M(S-S)(N-N) Type Complexes with Ni(II), Pd(II), and Pt(II)

평면사각형 혼합 리간드 착물의 합성과 그 특성 (제 2 보) : Ni(II), Pd(II) 및 Pt(II)의 M(S-S)(N-N)형 착물의 친전자성 및 친핵성 반응

  • OH Sang Oh (Department of Chemistry, Kyungpook National University) ;
  • Chung Duck Young (Department of Chemistry, Kyungpook National University)
  • 오상오 (경북대학교 자연과학대학 화학과) ;
  • 정덕영 (경북대학교 자연과학대학 화학과)
  • Published : 1992.02.20
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Abstract

The electrophilic and nucleophilic reactions of M(S-S,ph)(N-N,H) (M = Ni(II), Pd(II), Pt(II); (S-S,ph) = 1,2-diphenylethylenedithiolate; (N-N,H)=1,10-phenanthroline) complexes have been investigated. Reaction with norbornadiene depended upon the back donating ability of the central metal ion and produced 2,5-dithia-3,4-diphenyl-tricyclo[4,4,1,0]-undeca-3,8-diene. In the reaction with methyl iodide, the effect of cleavage of (N-N,H) ligand affected the yield of methylated $M(S-S,ph)_2$ product. The structure of the thermolysis product, ${\alpha},{\alpha}{\prime}$-bismethylthiostibene $(CH_3S-SCH_3,ph)$ of methylated complexes indicates that the main product of the nucleophilic reaction is $M(CH_3S-SCH_3,ph)(S-S,ph)$. We have synthesized a new mixed-ligand complex M(S-S,CN)(N-N,H)((S-S,CN) = 1,2-dicyanoethylenedithiolate) through the nucleophilic reaction of ligand.

M(S-S,ph)(N-N,H) (M = Ni(II), Pd(II), Pt(II); (S-S,ph) = 1,2-diphenylethylenedithiolate; (N-N,H)=1,10-phenanthroline) 착물의 친전자성 및 친핵성 리간드 반응을 조사하였다. norbornadiene과의 반응성은 중심금속의 역결합의 정도에 의존하며 2,5-dithia-3,4-diphenyl-tricyclo[4,4,1,0]-undeca-3,8-diene을 생성하였다. methyl iodide와의 반응은 (N-N,H) 리간드의 이탈 능력에 지배되며 메틸화된 $M(S-S,ph)_2$ 착물을 생성하였다. 이 반응의 주생성무리은 열 분해에 의해 얻어진 ${\alpha},{\alpha}{\prime}$,-bismethylthiostibene $(CH_3S-SCH_3,ph)$의 구조로부터 M(S-S,CN)(N-N,H)((S-S,CN) = 1,2-dicyanoethylenedithiolate)의 새로운 혼합 리간드 착물을 합성하였다.

Keywords

References

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