Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Carbon-13 and Vanadium-51 Nuclear Magnetic Resonance Studies of Vanadium(v)-Aminopolycarboxylic Acids (Ⅰ)

바나듐 (v)-아미노폴리카르본산 착물의 탄소-13 및 바나듐-51 핵자기공명연구 (제1보)

  • Man-Ho Lee (Department of Industrial Chemistry, College of Engineering) ;
  • Tae-Sub O (Department of Chemistry, Teacher's College, Kyungpook National University)
  • 이만호 (경북대학교 공과대학 공업화학과) ;
  • 오대섭 (경북대학교 사범대학 화학교육과)
  • Published : 1983.04.20
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Abstract

$^13C$ and $^51V$ NMR spectroscopy have been used to study the solution structures of the vanadium (v) complexes formed by ethylenediaminetetraacetic acid (EDTA), trans-cyclohexanediaminetetraacetic acid (CDTA), 1,2-propylenediaminetetraacetic acid (PDTA), ethylenediaminediacetic acid (EDDA), 2-hydroxyethylethylenediaminetriacetic acid (HEDTA), diethylenetriaminepentacetic acid (DPTA), and nitrilotriacetic acid (NTA). All of the complexes probably have octahedral structures containiing cis-$VO_2$ core. The coordination of hydroxylethyl group is found to be less favored than that of acetate group. EDDA forms two isomers, ${\alpha}$-cis and ${\beta}$-cis. PDTA also forms two structural isomers due to the methyl group in the ligand.

탄소-13 및 바나듐-51 핵자기공명분광법을 이용하여 아미노폴리카르본산-바나듐(v) 착물의 용액 내에서의 구조에 대해 연구하였다. 이 때 사용한 리간드는 ethylenediaminetetraacetic acid (EDTA), trans-cyclohexanediaminetetraacetic acid (CDTA), 1,2-propylenediaminetetraacetic acid (PDTA), ethylenediaminediacetic acid (EDDA), 2-hydroxyethylethylenediaminetriacetic acid (HEDTA), diethylenetriaminepentacetic acid (DPTA), nitrilotriacetic acid (NTA) 등이었다. 모든 리간드는 바나듐(Ⅴ)과 시스-VO2핵을 함유하는 정8면체 구조의 1:1 착물을 생성하였다. 바나듐(V)과 시스-$VO_2$ 핵을 함유하는 정8면체 구조의 1:1 착물을 생성하였다. 바나듐(V)에 대한 히드록시에틸기의 배위는 아세테이트기의 배위에 비해 덜 바람직함을 알 수 있었다. 그리고 EDDA 및 PDTA는 각각 2가지의 이성체착물들을 생성함을 알 수 있었다.

Keywords

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