罗丹明β-羟基萘醛腙的光致变色性质研究  

Spectroscopy Study on Photochromism ofβ-Hydroxynaphthaldehyde Rhodamine B Hydrazone

作　　者：郭浩模 田怡[1] 谭源源 胡燕[1] 陈稼轩[1] GUO Haomo;TIAN Yi;TAN Yuanyuan;HU Yan;CHEN Jiaxuan(School of Chemistry ,Leshan Normal University,Leshan Sichuan 614000,China)

机构地区：[1]乐山师范学院化学学院,四川乐山614000

出　　处：《乐山师范学院学报》2019年第4期34-38,共5页Journal of Leshan Normal University

基　　金：国家大学生创新训练计划项目"金属离子诱导下罗丹明Schiff碱的光致变色性质研究"(201610649029);天然产物化学与小分子催化四川省高校重点实验室项目"多重刺激响应性聚合物的合成及性质"(TRCWYXFZCH2016011);乐山市科技局重点项目"罗丹明类新型光致变色材料的开发与研究"(17GZD047)

摘　　要：以罗丹明B酰肼和2-羟基-1-萘甲醛为原料,制备了罗丹明β-羟基萘醛腙(L),其结构经~1H NMR, ^(13)C NMR和质谱表征。化合物L与Zn^(2+)形成配位比为1∶1的L-Zn^(2+)络合物。利用紫外光谱研究了目标化合物L与Zn^(2+)在乙醇溶液中的光致变色特性。结果表明,L-Zn^(2+)络合物500 nm以上基本无吸收,呈淡黄色,但在UV-365 nm照射下,络合物在乙醇溶液中能迅速转变为红色,并在557 nm处产生强的吸收,当停止照射后,溶液又能转变为淡黄色,且具有良好的抗疲劳性。β-Hydroxynaphthaldehyde rhodamine B hydrazone L was synthesized facilely by one step condensation reaction of rhodamine B hydrazide and β-Hydroxynaphthaldehyde in this paper, and its structure was characterized by 1H NMR, MS spectra and elemental analysis. Upon the addition of Zn^2+, 1 : 1 zinc-ligand complex was formed. The photochromic properties of the target compound L with zinc ions have been investigated in EtOH solution by the ultraviolet spectrophotometry. The results indicated that zinc-ligand complex had almost no absorption in the region of visible light and looked like light yellow,but on irradiation of 365 nm UV,the opening ring had an intensive absorption at 557 nm and gave a red color,when stopping irradiation the solution returned light yellow,indicating a good photochromic property and a good fatigue resistance for the reversible photochromism.

关 键 词：罗丹明B酰肼 光致变色 光谱性质 

分 类 号：O626[理学—有机化学]