无机化学学报
無機化學學報
무궤화학학보
JOURNAL OF INORGANIC CHEMISTRY
2001年
2期
239-243
,共5页
史卫良%陈德余%陈士明%严小敏
史衛良%陳德餘%陳士明%嚴小敏
사위량%진덕여%진사명%엄소민
水杨醛天冬氨酸席夫碱 铜(Ⅱ)配合物 ESR波谱 O2-清除作用
水楊醛天鼕氨痠席伕堿 銅(Ⅱ)配閤物 ESR波譜 O2-清除作用
수양철천동안산석부감 동(Ⅱ)배합물 ESR파보 O2-청제작용
测定了水杨醛天冬氨酸Cu(Ⅱ)配合物在室温和低温下吡啶中的溶液ESR谱,室温溶液谱观测到二级效应和弛豫效应,给予了理论解释,计算了弛豫参数;根据低温ESR波谱参数,计算了键参数,讨论了配合物的成键特性和稳定性。利用ESR法直接测定了水杨醛天冬氨酸席夫碱配体及其铜、锌、钴、镍配合物抗O2-性能,结果表明:配体和配合物均有抗O2-性能,配合物清除能力比配体强,其中铜配合物清除O2-能力最强。
測定瞭水楊醛天鼕氨痠Cu(Ⅱ)配閤物在室溫和低溫下吡啶中的溶液ESR譜,室溫溶液譜觀測到二級效應和弛豫效應,給予瞭理論解釋,計算瞭弛豫參數;根據低溫ESR波譜參數,計算瞭鍵參數,討論瞭配閤物的成鍵特性和穩定性。利用ESR法直接測定瞭水楊醛天鼕氨痠席伕堿配體及其銅、鋅、鈷、鎳配閤物抗O2-性能,結果錶明:配體和配閤物均有抗O2-性能,配閤物清除能力比配體彊,其中銅配閤物清除O2-能力最彊。
측정료수양철천동안산Cu(Ⅱ)배합물재실온화저온하필정중적용액ESR보,실온용액보관측도이급효응화이예효응,급여료이론해석,계산료이예삼수;근거저온ESR파보삼수,계산료건삼수,토론료배합물적성건특성화은정성。이용ESR법직접측정료수양철천동안산석부감배체급기동、자、고、얼배합물항O2-성능,결과표명:배체화배합물균유항O2-성능,배합물청제능력비배체강,기중동배합물청제O2-능력최강。
ESR spectra of the copper (Ⅱ) complex with salicylidene aspartic acid Schiff bases in pyridin solvent were investigated at different temperatures. The second order effect and the relaxation effect on the solution ESR spectrum at room temperature were observed and satisfactorily explained. The relaxation parameters were calculated. By using spectral parameters from ESR spectrum at low temperature, the bonding parameters of Cu(Ⅱ) complex were calculated. The bonding characterization and stability of the complex were disscussed. The properties of the ligand and the complexes of copper(Ⅱ), zinc(Ⅱ), cobalt(Ⅱ) and nickel(Ⅱ) in scavenging O2·- were directly measured by ESR. The results show that the ligand and complexes all have the scavenging O2·- ability, and the inhibition ability of the complexes were stronger than that of the ligand, and the inhibition ability of the coper(Ⅱ) complex was the strongest.