Theoretical Studies of Second-Order Nonlinear Optical Properties of Benzo Five-Membered Heterocyclic Squaraine Derivatives
LI Guang-Xue1,2,PENG Xin-Hua,LÜ Chun-Xu*,1
Chin. J. Org. Chem. . 2006, (06): 839 -844 .