中文摘要：

合成了A-A-A型双苯乙烯基苯类化合物FR[2,5-二氰基-1,4-二（4＇-氟苯乙烯基）苯],并采用核磁共振、红外光谱和元素分析等手段对其进行了表征.用飞秒脉冲诱导荧光光谱法分别研究了2个A-A-A型双苯乙烯基苯类化合物FR与CY[2,5-二氰基-1,4-二（4＇-氰基苯乙烯基）苯]以及2个D-A-D型双苯乙烯基苯类化合物MO[2,5-二氰基-1,4-二（4＇-甲氧基苯乙烯基）苯]和MA[2,5-二氰基-1,4-二（4＇-二甲胺基苯乙烯基）苯]的单、双光子吸收与发射特性.实验结果表明,最大单光子吸收与发射波长随末端取代基供电子能力的增强而增大,末端强吸电子基化合物FR和CY具有相当高的荧光量子产率（分别为0.92与0.89）、较长的荧光寿命（分别为5.8与6.1 ns）及较大的双光子吸收系数（分别为19.1与20.5）.末端带强吸电子基的化合物FR与CY的双光子吸收截面（δ,分别为6350 GM和6870 GM）比末端带供电子基的化合物MO和MA的δ（分别为270 GM与1790 GM）要大得多,表明A-A-A型双苯乙烯基苯类化合物具有异常大的δ.

英文摘要：

The synthesis of FR[2,5-dicyano-1,4-bis-（4＇-fluorostyryl） benzene]with typical A-A-A conjuga-tion structure was reported,and its structure was characterized by 1H NMR,IR and elemental analysis.One-and two-photon absorption and emission properties of bis（styryl） benzene derivatives including FR and CY[2,5-dicyano-1,4-bis-（4＇-cyanostyryl） benzene]with A-A-A conjugation structure,and MO[2,5-dicyano-1,4-bis-（4＇-methoxystyryl） benzene] and MA[2,5-dicyano-1,4-bis-（4＇-dimethylaminostyryl） benzene] with D-A-D conjugation structure were studied by the one-and two-photon-induced fluorescence emission in femto-second pulses,respectively.The maximum wavelengths of the one-photon absorption and emission increased with increasing electron-donating capacity of terminal substituent groups,and compounds FR and CY of elec-tronaccepting terminal groups displayed very high fluorescence quantum yields（0.92 and 0.89,respective-ly）,long fluorescence lifetime（5.8 and 6.1 ns,respectively） and large two-photon absorption coefficient（19.1 and 20.5,respectively）.The two-photon absorption cross sections（δ） of FR and CY（6350 GM and 6870 GM,respectively） with strongly electron-accepting terminal groups were much larger than those of MO and MA（270 GM and 1790 GM,respectively） with electron-donating terminal groups.The result indicates that bis（styryl） benzene derivatives with A-A-A conjugation structure exhibit a considerably large δ.