CAJ | 학술논문

　　以咔唑为原料合成了2个荧光化学传感器，所得化合物的组成和结构经元素分析以及质谱、红外光谱、核磁共振氢谱验证．通过在25℃下进行荧光光谱滴定，研究了传感器在体积比为1∶1的二甲基亚砜/水缓冲溶液[三羟甲基氨基甲烷盐酸盐（Tris-HCl），pH ＝7．4]中对Cu2＋和 Fe3＋的选择性识别作用．结果表明，所合成的传感器与Cu2＋和 Fe3＋形成1∶1的配合物并导致荧光猝灭，并对Cu2＋离子和Fe3＋离子具有较高的选择性识别和荧光传感性能．
　　이잡서위원료합성료2개형광화학전감기，소득화합물적조성화결구경원소분석이급질보、홍외광보、핵자공진경보험증．통과재25℃하진행형광광보적정，연구료전감기재체적비위1∶1적이갑기아풍/수완충용액[삼간갑기안기갑완염산염（Tris-HCl），pH ＝7．4]중대Cu2＋화 Fe3＋적선택성식별작용．결과표명，소합성적전감기여Cu2＋화 Fe3＋형성1∶1적배합물병도치형광졸멸，병대Cu2＋리자화Fe3＋리자구유교고적선택성식별화형광전감성능．
Two novel fluorescent chemosensors were synthesized with carbazole as the starting material .The composition and structure of as-synthesized compounds were confirmed by ele-mental analysis as well as mass spectrometry ,infrared spectrometry and nuclear magnetic reso-nance spectrometry (1 H NMR) .Furthermore ,the selective recognition ability of as-synthe-sized fluorescent chemosensors towards Cu2+ and Fe3+ ions in dimethyl sulphoxide/H2 O with a volume ratio of 1∶1 [tris(hydroxymethyl) aminomethane hydrochloride buffer ,coded as tris-HCl;pH = 7 .4] was evaluated by monitoring fluorescent titration at 25 ℃ .Results indicate that as-synthesized fluorescent chemosensors are coordinated with Cu2+ or Fe3+ to form 1∶1 type coordination compounds thereby resulting in fluorescence quenching .Besides ,they exhibit good selectivity and fluorescent sensitivity towards Cu 2+ and Fe3+ cations .