甲硫氨酸席夫碱铜、锌、钴配合物合成及抗O_2~·-性能

合成了邻香草醛甲硫氨酸席夫碱及其铜、锌、钴等配合物 ,通过元素分析、摩尔电导、红外光谱、电子光谱、热分析及电子顺磁共振等手段对它们进行了表征 ,并用 EPR法探讨了它们对O· -2 的清除作用 .结果表明 ,配体与配合物均具有抗 O· -2 性能 ,配合物清除能力比配体强 ,其中铜和钴配合物清除能力最强     

邻香草醛谷氨酸铜、锌配合物的合成、波谱及其抗O_2~-性能

合成了谷氨酸缩邻香草醛席夫碱(简写LG)及其铜、锌配合物,通过元素分析、摩尔电导、热分析、电子光谱、红外光谱和电子顺磁共振波谱等手段对它们进行了表征,并用电子顺磁共振法研究了铜配合物抗O-2性能。     

^15N标记的二(2-羟基苯乙酮肟)^63Cu(Ⅱ) 配合物的ESR和配体核的ENDOR研究

本文用定向选择的方法,研究了20K下测定的^15N-^63Cu-HAP的5:1DMSO-EtOH溶液ENDOR谱,精确测得配体^25N核的各向异性超超精细耦合张量值和各种不等价^1H核的超超精细耦合张量值.研究结果表明,我们前文的波谱解析,方法是正确的,数据是可靠的.     

苯甲酰丙酮—乙二胺HALF—UNIT席夫碱的铜（Ⅱ）络合物合成及波谱研究

由苯甲酰丙酮与乙二胺缩合成了一种新的Ｈａｌｆ－ｕｎｉｔ席夫碱，进一步与邻菲罗啉或２，２＇－联吡啶合成了两个铜（Ⅱ）的络合物，［Ｃｕ（ｂｚａｃｅｎ）（）ｐｈｅｎ）］ＣｌＯ４，［Ｃｕ（ｂｚａｃｅｎ）（ｂｉｐｙ）］ＣｌＯ４。     

VO^2＋—苏氨酸—邻菲绕啉配合物的结构及其波谱研究

本文测定了ＶＯＳＯ４与苏氨酸及ＶＯＳＯ４与苏氨酸、邻菲绕啉在不同酸度的乙二醇／水（１：１）溶液中的低温（１７３Ｋ）ＥＳＲ波谱，发现在不同ＰＨ下生成不同组成，结构的配合物，利用Ｊｏｈｎｓｏｎ的加合规则，并结合配合物的红外光谱推测了它们的可能结构，利用电子光谱推测了配合物的晶体场参数，讨论了它们的成配特性。     

VO (Ⅱ)-天冬氨酸-π受体三元混配络合物的结构及其ESR波谱研究

测定了VOSO₄与天冬氨酸(asp)和邻菲罗啉(phen)及联吡啶(bipy)三元体系在不同酸度(pH=1-14)的乙二醇-水(1:1)溶液中低温ESR波谱,发现不同pH下生成不同组成和结构的络合物,利用Johnson加合规则并配合IR推测了它们的可能结构,利用电子光谱数据,计算了络合物晶体场参数。     

水杨醛酪氨酸铜配合物合成和EPR波谱

A new Schiff base derived from tyrosine and salicylidene and its copper(Ⅱ) complex have been synthesized and characterized by elemental analyses,molar conductances,thermal analyses,infrared spectra,electronic spectra and EPR spectra.The composition of the complex is K[CuL(Ac)]•H2O, where L=H13C16NO4. EPR spectra of the copper(Ⅱ) complex were investigated in various solvents at different temperatures.It is found that the linewidth of four hyperfine lines on solution spectra at room temperature is unequal and changes with mⅠ ,this could be satisfactorily explained by the relaxation effect.The relaxation time and the relaxation rate were calculated.By using spectral parameters from solution spectra at low temperature,the bonding parameters of Cu(Ⅱ) complex were calculated.The bonding characterization and stability of the complex were disscussed.The results show that the in plane 螵瞓ond and the in plane 皙瞓ond in the complex all play an important role.     

水杨醛酪氨酸铜配合物合成和EPR波谱

A new Schiff base derived from tyrosine and salicylidene and its copper(Ⅱ ) complex have been synthesized and characterized by elemental analyses,molar conductances,thermal analyses,infrared spectra,electronic spectra and EPR spectra.The composition of the complex is K[CuL(Ac)]· H2O, where L=H13C16NO4.EPR spectra of the copper(Ⅱ) complex were investigated in various solvents at different temperatures.It is found that the linewidth of four hyperfine lines on solution spectra at room temperature is unequal and changes with mⅠ ,this could be satisfactorily explained by the relaxation effect.The relaxation time and the relaxation rate were calculated.By using spectral parameters from solution spectra at low temperature,the bonding parameters of Cu(Ⅱ ) complex were calculated.The bonding characterization and stability of the complex were disscussed.The results show that the in-plane σ -bond and the in-plane π -bond in the complex all play an important role.     

水杨醛天冬氨酸过渡金属配合物的ESR波谱及抗O_2~(·-)性能

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钢、锌、钻、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。     

13Cu、65Cu和15N标记的二(2-羟基苯乙酮肟)-铜(Ⅱ)配合物的ESR波谱研究

本文解析了同位素标记的⁶³Cu-¹⁴N-HAP,⁶⁵Cu-¹⁴N-HAP,⁶³Cu-¹⁵N-HAP。⁶⁵Cu-¹⁵N-HAP,和Cu-¹⁵N-HAP,等五种配合物在四氢呋喃中,在77K温度下测得的分辨较好的ESR波谱。从图上不仅得到了⁶³Cu和⁶³Cu的超精细分裂,而且还得出分辨较好的¹⁴N和¹⁵N的超超精细分裂。比较合理地确定了g_x,g_y,g_z;A_x⁶⁵,A_y⁶⁵,A_z⁶⁵和A_x⁶³,A_y⁶³,A_z⁶³以及A_⊥¹⁵,A_⊥¹⁵和A_⊥¹⁴,A_⊥¹⁴等张量参数。利用测得的波谱参数计算了键参数,并讨论了配合物的电子结构及成键特性,得到了较满意的结果。