用扩展的SSH模型研究C_（58）N_2

Extended SSH Model Approach to C_(58)N_2

采用扩展的ＳＳＨ模型，研究了Ｃ_（５８）Ｎ２的几种异构体的结构和性质，数值计算结果显示出每一种异构体都具有两组自洽的稳定解，代表着系统的两个相，这与一维有机聚合物相类似，并且有一组解与用自洽场分子轨道方法所得结果相符。

The Su-Schrieffer-Heeger(SSH) model has been extended to study configuration and electronic property of some isomers of C_(58)N_2. Numerical culculating results show that there are two stable sets of solution representing two phases of system for every isomer.This is similar to one-dimension organic polymers, and there is a set of solution in good agreement with those obtained from a self-consistent-field moledular-orbital(SCF-MO) method.