Design of a semirigid molecule as a selective fluorescent chemosensor for recognition of Cd(II)

被引：162

作者：

Tang, Xiao-Liang ^{[1
,2
]}

Peng, Xiao-Hong ^{[1
,2
]}

Dou, Wei ^{[1
,2
]}

Mao, Jie ^{[1
,2
]}

Zheng, Jiang-Rong ^{[1
,2
]}

Qin, Wen-Wu ^{[1
,2
]}

Liu, Wei-Sheng ^{[1
,2
,3
]}

Chang, Jin ^{[1
,2
]}

Yao, Xiao-Jun ^{[1
,2
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China

[3] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

来源：

ORGANIC LETTERS | 2008年 / 10卷 / 17期

关键词：

D O I：

10.1021/ol801382f

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A new 8-hydroxyquinoline-based chemosensor possessing a semirigid structure was designed, and its fluorescent sensing behavior toward metalions was investigated. A prominent fluorescence enhancement only for Cd2+ was found in aqueous methanol solution. The results clearly suggest that the specific semirigid structure could selectively accommodate Cd2+ according to ionic radius, which would effectively suppress the intramolecular radiationless transitions from the n pi* state to enhance the fluorescence response.

引用

页码：3653 / 3656

页数：4

共 45 条

[11] 4,4′-Bis(dimethylamino)biphenyl containing binding sites.: A new fluorescent subunit for cation sensing [J].