1,4-二(苯并噁唑-1’,3’-基-2’)苯衍生物的合成及其物理性能研究

Synthesis and Physical Properties of Some 1,4-Bis(1’ ,3’-Benzoxazolyl-2’) Benzene Derivatives

合成了1,4-二(苯并(口恶)唑-1′,3′-基-2′)苯衍生物13种化合物。测定了它们的熔点、红外光谱、紫外吸收光谱、荧光发射光谱、荧光量子产率、荧光寿命和激光性能。

Thirteen of 1 ,4-Bis(1’ ,3’ -Benzbxazblyl-2’) -benzene derivatives are synthesized, they are all new compounds. Their m. p., IR, UV absorption spectra, fluorescence emission spectra, fluorescence quantum efficiencies, fluorescence lifetime as well as laser conversion efficiencies of the compounds are determined. The results obtained show that the absorption maximum is at 330-350nm and the fluorescence maximum at 385-406nm. In comparison with unsubstituted compound they have lower melting points and higher solubilities. These compounds are moree coplanar and higher fluorescence quantum efficiencies. The compound ⅩⅢ reported here has a. higher laser conversion efficiency than those other ones of homologous (10% above) and is photochemically stable.