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以氯化4-甲基-N-9-亚甲基蒽吡啶盐为原料,合成了一种新型的苯乙烯吡啶盐,通过红外、核磁共振氢谱、碳谱、电喷雾质谱、单晶X射线衍射等测试技术对化合物的结构进行了表征. 单晶X射线衍射结果表明,该化合物属于单斜晶系,空间群为P2_1/c,晶胞参数a=1.255 7(1) nm, b=1.539(1) nm,c=2.220 2(8) nm, β=101.099(1)°,V=4.210 5(4) nm~3,Z=4,Dc=1.159 g/cm~3. 用1 064 nm皮秒脉冲激光研究其三阶非线性光学特性,双光子吸收系数β=0.028 cm/GW,吸收截面为σ=8.68×10~(-48) cm~4·s·photon~(-1),表明目标化合物具有良好的三阶非线性光学性质.

A novel substituent styryl pyridinium tetraphenylborate, 4-N,N-dimethylamino-4'-N'-9-methano-anthracene-stilbazolium tetraphenylborate, was synthesized and characterized by means of IR, ~1H NMR, ~(13)C NMR, MS-EI and X-ray single-crystal diffraction. The compound crystallized in the monoclinic space group P21/c with a=1.255 7(1) nm, b=1.539(1) nm, c=2.220 2(8) nm, β=101.099(1) °, and V=4.210 5(4) nm~3, Z=4, Dc=1.159 g/cm~3. The nonlinear optical properties of the compound were investigated by virtue of 1 064 nm nanosecond laser beam, and the results show that the novel pyridinium salt has a two photon absorption(TPA) coefficient of β=0.028 cm/GW, a TPA cross-section of σ=8.68×10~(-48) cm~4·s·photon~(-1).

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