CAJ | 학술논문

合成了配合物[Cu(NTB)Cl]ClO4·2.5CH3OH(NTB为N,N,N-三(2(-苯并咪唑甲基)胺),并进行了紫外可见光谱、元素分析、循环伏安和单晶X射线衍射分析等表征.用UV-Vis.研究了以邻苯二酚、邻苯三酚为底物时配合物的多酚氧化酶活性,结果表明:配合物的多酚氧化酶活性符合米氏方程曲线;在pH为8.0和30℃的条件下,配合物催化邻苯三酚和邻苯二酚反应的转化数分别为88.2 h-1和0.54 h-1.通过动力学数据比较发现,邻苯三酚比邻苯二酚更容易氧化,而且它们的催化氧化速率都随着pH的升高而增大.
합성료배합물[Cu(NTB)Cl]ClO4·2.5CH3OH(NTB위N,N,N-삼(2(-분병미서갑기)알),병진행료자외가견광보、원소분석、순배복안화단정X사선연사분석등표정.용UV-Vis.연구료이린분이분、린분삼분위저물시배합물적다분양화매활성,결과표명:배합물적다분양화매활성부합미씨방정곡선;재pH위8.0화30℃적조건하,배합물최화린분삼분화린분이분반응적전화수분별위88.2 h-1화0.54 h-1.통과동역학수거비교발현,린분삼분비린분이분경용역양화,이차타문적최화양화속솔도수착pH적승고이증대.
The title complex [ Cu (NTB) Cl ] ClO4 2.5 CH3 OH (NTB=Tris (benzimidazolyl-2-methyl) amine) has been synthesized and characterized by UV-Vis.,elemental analysis,cyclic voltammetry and single crystal X-ray diffraction anal-ysis.Polyphenol oxidase activities toward pyrogallol and catechol have been studied spectroscopically. Their kinetics obey the Michaelis-Menten equation. The turnover numbers of the complex toward pyrogallol are 88.2 h-1 and 0.54 h-1 for cate-chol at pH 8.0 and 30 ℃. Compared with the kinetic data,it is apparent that pyrogallol oxidation is easier than catechol,and catalytic activities increase with increasing of pH values.