抄録
The molecular structure of a dinuclear nickel(II) complex was optimized by several computational methods, including ab initio, DFT, and semi-empirical methods. The computed structures were compared with crystallographically obtained structures. All the DFT methods reproduced the crystal structures well, and the B3LYP and LC-BLYP methods were better than the others. None of the semi-empirical methods gave a reasonable structure. All the reasonable structures were obtained by assuming the quintet state, which was consistent with the ferromagnetic exchange interaction.
