烷氧基偶氮苯化合物的合成_表征及光响应性能(4)

70辽宁师范大学学报(自然科学版)第34卷

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Thesynthesis,characterizationandphotoreponseofalkoxyazobezenecompound

YUShi-jun, WANGHong, GAOYong-jiu, GAOBo

(SchoolofChemistryandChemicalEngineering,LiaoningNormalUniversity,Dalian116029)

Abstract:Anovelalkoxyazobezenecompound5-(4-hexadecyloxyphenylazo)-1,3-diethylphthalatewassynthesizedthroughmultistepreactionswithisophthalicacidasrawmaterial.Thestructurewaschar-acterizedbyIR、HNMR、UV-vis.Themaximumabsorptionwavelengthandthemolarabsorptionco-efficientofthecompound(3.24 10mol LTHFsolution)were353nmand23950L mol cm-1,respectively.Thecompoundtookplacetrans-cisphotoisomerizationunder365nmUVirradia-tion.Thephotostationarystatewasobtainedafterirradiationfor8min,themaximumabsorptionwavelength(Kband)ofthecompoundblueshiftedto311nm.Itrecoveredoriginalstate40hlaterinthedark.Inthephotostationarystate,theefficiencyoftrans-cisphotoisomerization(R)andthecon-tentofcis-isomer(Y)ofazochromophorewere86.19%and90.5%,respectively.

Keywords:azobezenecompound;synthesis;characterization;photoresponse-5-1-11