Abstract |
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 α,α'-bismethylthiostibene (CH3S-SCH3,ph)의 구조로부터 M(S-S,CN)(N-N,H)((S-S,CN) = 1,2-dicyanoethylenedithiolate)의 새로운 혼합 리간드 착물을 합성하였다. 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, α,α'-bismethylthiostibene (CH3S-SCH3,ph) of methylated complexes indicates that the main product of the nucleophilic reaction is M(CH3S-SCH3,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. |
