一种Co^(2+)荧光探针的合成及其荧光性质  

Synthesis and Fluorescence Properties of a Co^(2+) Fluorescent Probe

作　　者：王博威[1] 欧阳杰[1] 王秋生[1] 潘龙[1] 张泱[1] 赵振[1] 侯晅[1] 

机构地区：[1]天津理工大学化学化工学院,天津300384

出　　处：《精细化工中间体》2012年第4期54-57,65,共5页Fine Chemical Intermediates

基　　金：国家自然科学基金资助项目(20771082);天津市自然科学基金资助项目(O9JCYBJC05800)

摘　　要：以2-甲基-6-硝基苯胺和水杨醛为原料合成了4-羟甲基-2-(4-羟甲基-1H-苯并[d]咪唑-2-基)苯酚,并进行了1H NMR结构表征和紫外、荧光性能的测定。荧光量子收率为0.21,斯托克斯位移为126。测定甲醇溶液中13种金属离子对化合物的荧光性质的影响,发现Co2+对该化合物具有明显优于其它金属离子的荧光淬灭效果,表明化合物对Co2+具有较好的选择性,可作为荧光淬灭型Co2+荧光传感器开展进一步的研究。4-(Hydroxymethyl)-2-(4-(hydroxymethyl)-1H-benzo[d]imidazol-2-yl)phenol was synthesized from 2-methyl-6-nitroaniline and salicylaldehyde and characterized by 1H-NMR,UV and FL.The fluorescence quantum yield of the target product was 0.21 and the Stoke's shift was 126 nm.It was found that Co2+ has better fluorescent quenching effect to 4-(hydroxymethyl)-2-(4-(hydroxymethyl)-1H-benzo[d]imidazol-2-yl)phenol than the other 12 metal ions which were tested in methanol.This indicated that 4-(hydroxymethyl)-2-(4-(hydroxymethyl)-1H-benzo[d]imidazol-2-yl)phenol has good selectivity to Co2+,so it could be further studied as Co2+ fluorescence chemical sensor of fluorescent quenching.

关 键 词：苯并咪唑 荧光探针 金属离子 

分 类 号：O657.3[理学—分析化学]