X-ray crystallographic and photophysical properties of rhodamine-based chemosensor for Fe3+.
A fluorescent sensor for Fe3+, 2-[3',6'-bis(ethylamino)-2',7'-dimethyl-3-oxospiro[1H-isoindole-1,9'-[9H]xanthen]-2-((2-aminoethyl) methyl)]phenol, has been synthesized and characterized by 1H NMR, 13C NMR and X-ray crystallography. The photophysical processes of the Fe3+-sensor have been carefully investigated by fluorescence and absorbance spectra. Upon addition of Fe3+, the sensor shows strong fluorescence change with absorbance and emission peaks at 530 and 554 nm, respectively. Other metal ions have no such response.
State Key Laboratory of Fine Chemicals, Dalian University of Technology, 158 Zhongshan Road, Dalian 116012, PR China.
Lizhu
L
Zhang
Jiangli
J
Fan
Xiaojun
X
Peng
D003460:Crystallization; D018360:Crystallography, X-Ray; D005290:Ferric Compounds / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D010777:Photochemistry; D012235:Rhodamines / Q000737:chemistry*
D005290:Ferric Compounds; D005456:Fluorescent Dyes; D012235:Rhodamines