A trial manufacture of irradiation/photometry system for cryogenic magneic susceptometer and optofunctionalization of molecule based magnet

当4，4-二吡啶重氮甲烷与Mn(HFAc)_2或Cu(HFAc)_2按1：1比例混合时，得到1：1的晶体，分别为橙红色和深绿色。X射线结晶学显示了锰络合物的多晶性。在一种晶体中，吡啶以顺式构型配位形成螺旋结构，在另一种晶体中，其结构为反式构型和锯齿状链状结构。铜络合物具有反式构型和锯齿状链状结构。晶体的光解是用二次谐波激光进行的。用SQUID磁化率计在2-300K测量了光解前后的磁化率。辐照前锰配合物的磁化率随温度的变化表现为锰自旋的分离，而辐照后形成了由锰和卡宾自旋组成的亚铁磁性一维链。相关自旋的最大数目为900个。在铜络合物的情况下，形成了铁磁性的一维链。

By mixing 4,4-dipyridyldiazomethane with Mn (hfac) _2or Cu (hfac) _2in 1 : 1 ratio, 1 : 1 complexes have been obtained as red-orange and dark green crystals respectively. X-ray crystallography revealed the polymorphism of the manganese complex. While in one crystal pyridine coordinated as cis configuration and resulted in helical structure, in the other crystal the structure was trans configuration and zigzag chain. Copper complexes had trans configuration and zigzag chain. The photolysis to the crystal was performed by second harmonic wave of Nd/YAG laser. The magnetic susceptibility before and after photolysis was measured by SQUID susceptometer at 2-300K.The temperature dependence of the susceptibility of manganese complex before irradiation showed isolation of magnanese spin, but after irradiation the formation of ferrimagnetic one-dimensional chain composed of manganese and carbene spins. The maximun number of correlation spins was 900. In the case of copper complex, ferromagnetic one-dimensional chain was formed.