A colorimetric and fluorescent sensor for sequential detection of聽copper ion and cyanide

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• 作者：Gyeong Jin Park^a ; ^b ; In Hong Hwang^a ; ^b ; Eun Joo Song^a ; ^b ; Hyun Kim^a ; ^b ; Cheal Kim^a ; ^b ; ^{chealkim20@daum.net" class="auth_mail} ; ^{chealkim@seoultech.ac.kr" class="auth_mail}
• 关键词：Colorimetric ; Fluorescent sensor ; Copper ; Cyanide ; Julolidine ; Naphthol
• 刊名：Tetrahedron
• 出版年：29 April, 2014
• 年：2014
• 卷：70
• 期：17
• 页码：2822-2828
• 全文大小：1473 K

文摘

A simple cation sensor boldFont">1 ((E)-9-((2-hydroxynaphthalen-1-ylimino)methyl)-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij]quinolin-8-ol) bearing both a julolidine moiety and a naphthol moiety was designed and synthesized as a colorimetric sensor for Cu²⁺. In methanol solution of boldFont">1, the presence of Cu²⁺ led to a distinct naked-eye color change from yellow to purple. The proposed sensing mechanism might be attributed to the decrease in internal charge transfer band. Moreover, the resulting boldFont">1-Cu²⁺ complex sensed cyanide in a fluorometric way via fluorescent changes. These results demonstrate a novel type of the sequential recognition of Cu²⁺ and CN^{鈭?/sup> using two different sensing methods, color change, and fluorescence.}