A Highly Copper-Selective Ratiometric Fluorescent Sensor Based on BODIPY

A new ratiometric fluorescent sensor （1） for Cu2＋ based on 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene （BODIPY） with di（2-picolyl）amine （DPA） as ion recognition subunit has been synthesized and investigated in this work. The binding abilities of 1 towards different metal ions such as alkali and alkal...

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Bibliographic Details
Published inChinese journal of chemistry Vol. 30; no. 8; pp. 1857 - 1861
Main Author 黄金龙 王波 叶建国 刘斌 邱化玉 尹守春
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.08.2012
WILEY‐VCH Verlag
Wiley
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Subjects
Alkaline earth metals
BODIPY
Chemistry
Chemistry, Multidisciplinary
chemosensor
Cobalt
Copper
copper(II)
Fluorescence
Ions
Metal ions
Physical Sciences
ratiometric measurement
Science & Technology
spectroscopic properties
UV-vis
化学计量学
比率
碱土金属离子
离子识别
荧光传感器
铜
非线性拟合
CU2
BODIPY
TURN-ON FLUORESCENT
chemosensor
AQUEOUS-MEDIA
RHODAMINE
ION
spectroscopic properties
OFF-ON
TUNABLE PHOTOCHROMISM
INTERNAL CHARGE-TRANSFER
copper(II)
ratiometric measurement
LIVING CELLS
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Summary:A new ratiometric fluorescent sensor （1） for Cu2＋ based on 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene （BODIPY） with di（2-picolyl）amine （DPA） as ion recognition subunit has been synthesized and investigated in this work. The binding abilities of 1 towards different metal ions such as alkali and alkaline earth metal ions （Na＋, K＋, Mg2＋, Ca2＋） and other metal ions （ Ba2＋, Zn2＋, Cd2＋, Fe2＋, Fe3＋, Pb2＋, Ni2＋, Co2＋, Hg2＋, Ag＋） have been examined by UV-vis and fluorescence spectroscopies. 1 displays high selectivity for Cu2＋ among all test metal ions and a ～10-fold fluorescence enhancement in I582/I558 upon excitation at visible excitation wavelength. The binding mode of 1 and Cu2＋ is a 1：1 stoichiometry determined via studies of Job plot, the nonlinear fitting of the fluorometric titration and ESI mass.
Bibliography:A new ratiometric fluorescent sensor （1） for Cu2＋ based on 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene （BODIPY） with di（2-picolyl）amine （DPA） as ion recognition subunit has been synthesized and investigated in this work. The binding abilities of 1 towards different metal ions such as alkali and alkaline earth metal ions （Na＋, K＋, Mg2＋, Ca2＋） and other metal ions （ Ba2＋, Zn2＋, Cd2＋, Fe2＋, Fe3＋, Pb2＋, Ni2＋, Co2＋, Hg2＋, Ag＋） have been examined by UV-vis and fluorescence spectroscopies. 1 displays high selectivity for Cu2＋ among all test metal ions and a ～10-fold fluorescence enhancement in I582/I558 upon excitation at visible excitation wavelength. The binding mode of 1 and Cu2＋ is a 1：1 stoichiometry determined via studies of Job plot, the nonlinear fitting of the fluorometric titration and ESI mass.
31-1547/O6
Huang Jinlong,Wang Bo,Ye Jianguo, Liu Bin, Qiu Huayu, Yin Shouchun（ College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China）
Program for Excellent Young Teachers in Hangzhou Normal University - No. HNUEYT 2011-01-019
istex:CA084FF1592C4F2DEC57FB2D493A42B80C7C0B27
ark:/67375/WNG-SGR2XDC6-2
Zhejiang Provincial Natural Science Foundation of China - No. Y4100287
the Opening Foundation of Zhejing Provincial Top Key Discipline - No. 20110943
ArticleID:CJOC201200260
the National Natural Science Foundation of China - No. 91127032, 21174035
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.201200260