Density functional study of intramolecular ferromagnetic interaction through<i>m</i>-phenylene coupling unit (I): UBLYP, UB3LYP, and UHF calculations
作者:Masaki Mitani、Hiroki Mori、Yu Takano、Daisuke Yamaki、Yasunori Yoshioka、Kizashi Yamaguchi
DOI:10.1063/1.1286418
日期:2000.9.8
as building blocks of organic ferromagnets, in which radical groups are connected with each other at the meta position in the benzene ring, and the parallel-spin configurations between radical sites are more stabilized than the antiparallel ones. Topological rules for spin alignments enable us to design organic high-spin dendrimers and polymers with the ferromagnetic ground states by linking various
由间亚苯基桥连的有机自由基组成的多自由基是众所周知的有机铁磁体的组成部分,其中自由基基团在苯环的间位上相互连接,自由基位点之间的平行自旋构型更加稳定比反平行的。自旋排列的拓扑规则使我们能够通过间亚苯基单元连接各种自由基物种来设计具有铁磁基态的有机高自旋树枝状大分子和聚合物。然而,尽管在过去十年中对这些材料进行了广泛的实验研究,但迄今为止尚未报道对此类自旋树枝状大分子和磁性聚合物进行系统的从头开始处理。