新型二苯基乙炔非线性光学材料  

A Novel Tolane Nonlinear Optical Organic Material

作　　者：余从煊[1] 王朝果[1] 冯金生[1] 刘敬镛[1] 周松[1] 

机构地区：[1]北京理工大学化工与材料学院

出　　处：《北京理工大学学报》1991年第3期33-39,共7页Transactions of Beijing Institute of Technology

摘　　要：首次用对甲氧基苯乙炔铜与对碘硝基苯反应,定量地得到了对甲氧基对硝基二苯基乙炔,其非线性光学效应较大,SHG粉末效率是MNA的两倍.培养了尺寸为3mm×3mm×0.2mm的单晶,晶体结构的对称性为三斜晶系,空间群为P1。A novel tolane has been prepared quantitatively by reacting cuprous p -methoxy phenylacetyline with p-iodonitrobenzene. The second order nonlinear optical property has been studied by powder measurement . Tolane exhibits strong SHG intensty twice that of MNA . Crystals of tolane suitable for diffraction studies are grown from organic solution . Its structure was determined by single crystal X-ray diffraction techniques . The tolane crystalline is triclinic with space: group P1, a= 1.192 14(73),b= 1.21308(75), c= 1.48753(54), α = 99,572(42),β= 113.055 (44), γ = 92.879(50),V= 1.936 (2). The rather large nonlinearity may be attributed to the noncentrosymmetric structure and favorite delocalized π - electron system .

关 键 词：二苯基乙炔 非线性 光学材料 

分 类 号：O621.22[理学—有机化学]