测定了双臂套索冠醚双核铜（Ⅱ）配合物［Ｃｕ_２Ｌ（ＯＨ）］（ＣｌＯ_４）_３Ｍ_ｅ２ＣＯ（Ｌ＝Ｎ，Ｎ′－二（８－喹啉甲基）－１，４，１０，１３－四氧－７，１６－二氮环八环）的变温磁化率（４～３００Ｋ），所加场强为５．０×１０^５Ａ／ｍ．拟合了变温磁化率数据，得到Ｊ＝－２７９．４ｃｍ^－１；加上分子场校正后，得Ｊ＝－２５７．７ｃｍ^－１，Zｊ′＝－３０．１ｃｍ^－１．拟合结果表明，分子间存在反铁磁性交换作用，而分子内的磁交换（Ｊ＜５００ｃｍ^－１）还未大到使其反铁磁性交换作用变为抗磁性．用自旋倾斜体系解释了其反常的 i_ｍ－Ｈ 图．晶体结构和Ｃｕ^２＋３d 轨道的分析表明，磁交换作用是通过ＯＨ桥进行的．比较了另外２个类似的双核铜（Ⅱ）大环ＯＨ桥联配合物，得出了Ｊ值和轨道重迭之间的关系．

The variable temperature(4∼300 K) magnetic susceptibility of binuclear copper ( II ) complex of the bibracchial lariat ether [Cu₂L (OH) ] (ClO₄)₃Me₂CO(L = N , N'-bis(8-quinolylmethyl)-1,4,10,13-tetraoxa-7,16-diazacyclooctadecane) (1) was measured in an appropriate magnetic field of 500 000 A/m. The strongly antiferromagnetic interaction constants are as follows: J = - 257. 7 cm-1, Zj' = - 30. 1 cm^-1. It is shown that there is an antiferromagnetic interaction between molecules. The | J | value (<500 cm^-1) is not large enough to lead to the diamagnetic coupling. The plot of i_m-H , which is different from the normal plot of i_m-H , is explained through the spin canting phenomenon. By analyzing the crystal structure of the complex and 3d orbitals of two Cu²⁺ cations , we suggest that the exchange path is through OH bridge. Compared with the other two analogous binuclear copper ( II ) complexes coordinated by macrocycle ligand and bridged by OH , we analyzed the correlation between J value and the overlap of orbitals.