Korean Journal of Crystallography (한국결정학회지)

Korean Crystallographic Association (한국결정학회)
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Structure of [$CoL_2(MeOH)(NO_3)_2$] [L = N1-(1-(pyridin-4-yl)ethylidene)naphthalene-1,5-diamine)]

$CoL_2(MeOH)(NO_3)_2$의 구조 [L=N1-(1-(pyridin-4-yl)ethylidene)naphthalene-1,5-diamine)]

  • Kim, Sung-Hoon (Department of Chemistry (BK21), Sungkyunkwan University, Natural Science Campus) ;
  • Huh, Hyun-Sue (Department of Chemistry (BK21), Sungkyunkwan University, Natural Science Campus) ;
  • Lee, Soon-W. (Department of Chemistry (BK21), Sungkyunkwan University, Natural Science Campus)
  • Published : 2007.12.31
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Abstract

When a $CH_2Cl_2$ solution of the dipyridyl species L' (N,N'-bis-(1-pyridin-4-yl-ethylidene)-naphthalene-1,5-diamine) was layered onto the top of a MeOH solution of $Co(NO_3)_2{\cdot}6H_2O$, a molecular cobalt compound [$CoL_2(MeOH)(NO_3)_2$] (1), not a coordination polymer, was formed. X-ray structural analysis of compound 1 revealed that it contains the pyridyl-amine ligand L (N1-(4-imino-1-methyl-but-2-enylidene)-naphthalene-1,5-diamine), instead of L'. Structure of compound 1 strongly suggests that the original ligand L' has been hydrolyzed to ligand L during the reaction.

Dipyridyl 리간드 L'(N,N'-bis-(1-pyridin-4-yl-ethylidene)-naphthalene-1,5-diamine)을 함유한 $CH_2Cl_2$ 용액을 $Co(NO_3)_2{\cdot}6H_2O$을 함유한 MeOH 용액 위에 깔았을 때, 배위 고분자가 아닌, 분자성 코발트 화합물 [$CoL_2(MeOH)(NO_3)_2$] (1)이 형성되었다. 화합물 1의 X-ray 구조 분석 결과, 이 화합물은 pyridyl-amine 리간드 L(N1-(4-Imino-1-methyl-but-2-enylidene)-naphthalene-1,5-diamine)을 함유하고 있었다. 반응 중에 리간드 L'이 리간드 L로 가수분해되었다는 것을 화합물 1의 구조가 강하게 암시하고 있다.

Keywords

References

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