摘要
以偶氮双 (2 -吡啶 ) (APY)为主 ,同时加入 1 ,4-双 (咪唑基 -1 -甲基 )苯 (bix)或 1 ,4-双 (咪唑基 -1 -甲基 ) -2 ,5 -二甲基苯 (Mebix)为配体合成了 9个金属配合物 ,通过元素分析、IR、UV-Vis,ESR等手段对配合物作了表征 。
Nine azobis(2 pyridine) containing metal complexes:Mn 2(APY)(Mebix) 2(Ac) 4·4H 2O(1); Cu 2(APY)(Mebix) 2(Ac) 4·4H 2O(2); Ni 2(APY)(Mebix) 2(Ac) 4·4H 2O(3); Cu 2(APY)(bix) 2 (Ac) 4·6H 2O(4); Ni 2(APY)(bix) 2(Ac) 4·6H 2O(5); Mn 2(APY) (bix) 2(Ac) 4·4H 2O(6); CuGd (APY)(bix) 2(Ac) 2(NO 3) 3·6H 2O(7); NiGd(APY)(bix) 2(Ac) 2(NO 3) 3·6H 2O(8); MnGd(APY) (bix) 2(Ac) 2(NO 3) 3·6H 2O(9) have been prepared and characterized by elemental analysis, infrared, electronic spectra, and ESR. The molecular mechanics and quantum chemical studies have also been engaged to interpret their properties. The cyclic voltammogram studies show that the oxidation reduction processes of (1)^(6) appear to involve an oxidation reduction of APY and two step two electron transfer processes of the bimetallic cores; while the oxidation reduction processes of (7)^(9) involve an oxidation reduction of APY and one step two electron transfer processes of 3 d metallic cores. The molecular mechanics and quantum chemical studies demonstrate that there would be a weak antiferromagnetic interaction between the two copper(Ⅱ) units in complex (1), which agrees with the result evaluated by ESR (-2 J =11 6 cm -1 ).
出处
《应用化学》
CAS
CSCD
北大核心
2001年第9期685-688,共4页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金重点资助项目 ( 2 96310 40
2 0 0 710 19)
天津市自然科学基金资助项目
