摘要
合成和表征了两种含草酰胺桥的新型异双核配合物［Ｃｕ（ｏｘａｅ）Ｆｅ（ｔｍｅｎ）２］ＳＯ４（ａ）和［Ｃｕ（ｏｘｐｎ）Ｆｅ（ｔｍｅｎ）２］ＳＯ４（ｂ）。变温磁化率（４３００Ｋ）测量和磁分析表明两个Ｃｕ（Ⅱ）Ｆｅ（Ⅱ）双核配合物中金属离子间有中等强度的反铁磁超交换作用。
Two new μ oxamido heterobinuclear complexes [Cu(oxae)Fe(tmen) 2]SO 4(a) and [Cu(oxpn)Fe(tmen) 2]SO 4(b) have been synthesized and characterized, where tmen stands for N,N,N′,N′ tetramethylenediamine ; oxae and oxpn represent N,N′ bis(2 aminoethyl)oxamido dianion and N,N′ bis(3 aminopropyl)oxamido dianion, respectively The temperature dependent mangnetic susceptibilities of two complexes have been studied over the range 4￣300 K, and the exchange integral J is found to be 75 69 cm -1 for (a) and 18 58 cm -1 for (b), on the basis of spin Hamiltonian = 2J 1 · 2-D 2 Z1 The results are commensurate with moderately strong antiferromagnetic superexchange interactions between the metal ions
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1998年第4期478-481,共4页
Chinese Journal of Inorganic Chemistry
基金
山东省青年自然科学基金
国家自然科学基金
关键词
反铁磁超交换
草酰胺
异双核
配合物
铜
铁
磁性
oxamido bridge heterobinuclear complex copper(Ⅱ) iron(Ⅱ) magnetism
