Novel fluorescent molecular clips: selective recognition towards Fe3+ in aqueous solution.
In this paper, we report the synthesis, characterization and Fe(3+)-sensing properties of a series of new artificial fluorescent molecular clips, and structure of clip 1 is confirmed by X-ray crystallography. All these molecular clips had the ability to bind and sense Fe(3+) selectively through decrease fluorescence responses in THF-MeOH-Water. Fluorimetric titration experiment indicated that the quenching of these compounds' fluorescence upon Fe(3+) probably arises from the electron/energy transfer between Fe(3+) and the excited chemosensors. The limit of detection, linear concentration range and selectivity of the fluorescent molecular clips were evaluated in this study as well.
Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China.
Lin
L
Li
Neng-fang
NF
She
Zhuan
Z
Fei
Pui-kin
PK
So
Yu-zhou
YZ
Wang
Li-ping
LP
Cao
An-xin
AX
Wu
Zhong-ping
ZP
Yao
D018360:Crystallography, X-Ray; D004579:Electron Transport; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D007501:Iron / Q000032:analysis*; D057230:Limit of Detection; D012996:Solutions / Q000032:analysis*; D013329:Structure-Activity Relationship; D014867:Water
D005456:Fluorescent Dyes; D012996:Solutions; D014867:Water; D007501:Iron