Solvatofluorochromism of N-[2-(2-hydroxylethylamino)-ethyl]-1,8-naphthalimide in protic solvent
摘要:
A N-substituted naphthalimide derivative N-[2-(2-hydroxylethylamino)-ethyl]-1,8-naphthalimide (HEAN), which contains potential acceptors for hydrogen bond, was synthesized and fully characterized. The fluorescence and UV/vis behaviors of HEAN in different solvents were investigated, and its Stokes shift value and fluorescence quantum yield (Phi(f)) in each solvent were determined. A remarkable fluorescence enhancement of HEAN in protic-polar solvents but a great quenching effect in apolar, less-polar and aprotic-polar solvents were observed, suggesting the key role of the proticity of solvents. In the protic-polar solvents, the fluorescence intensity and the quantum yield of HEAN increased along with a slight red-shift of the characteristic emission wavelength (lambda(em)) with the increase of solvent polarity. Maximum Or value of 0.453 for HEAN was found in water solvent with a Stokes shift of 4636 cm(-1). The inhibition of the photoinduced electron transfer (PET) by the intermolecular hydrogen-bonding interactions between protic solvents and HEAN was proposed to be responsible for its strong fluorescence enhancement. Such solvatofluorochromic property of HEAN may make it as a prospective fluorescent chemosensor to distinguish a protic solvent from aprotic solvents. (c) 2008 Elsevier B.V. All rights reserved.
ZEE-CHENG, R. K. Y.;CHENG, C. C., J. MED. CHEM., 1985, 28, N 9, 1216-1222
作者:ZEE-CHENG, R. K. Y.、CHENG, C. C.
DOI:——
日期:——
N-(Aminoalkyl)imide antineoplastic agents. Synthesis and biological activity
作者:Robert K. Y. Zee-Cheng、C. C. Cheng
DOI:10.1021/jm00147a016
日期:1985.9
substitution on certain chosen ring systems, and (d) combinations of the aforementioned variants. Preliminary biologicalactivity screening indicated that N-(dialkylaminoethyl)imides of the 3,6-dinitro- and 3,6-diamino-1,8-naphthalic acid system possessed prominent antileukemia and antimelanoma activity in both in vitro and in vivo experimental tumor systems.
Solvatofluorochromism of N-[2-(2-hydroxylethylamino)-ethyl]-1,8-naphthalimide in protic solvent
作者:Jingwen Chen、Ruiren Tang、Zuowen Luo、Chunsheng Yang
DOI:10.1016/j.molstruc.2008.07.017
日期:2009.1
A N-substituted naphthalimide derivative N-[2-(2-hydroxylethylamino)-ethyl]-1,8-naphthalimide (HEAN), which contains potential acceptors for hydrogen bond, was synthesized and fully characterized. The fluorescence and UV/vis behaviors of HEAN in different solvents were investigated, and its Stokes shift value and fluorescence quantum yield (Phi(f)) in each solvent were determined. A remarkable fluorescence enhancement of HEAN in protic-polar solvents but a great quenching effect in apolar, less-polar and aprotic-polar solvents were observed, suggesting the key role of the proticity of solvents. In the protic-polar solvents, the fluorescence intensity and the quantum yield of HEAN increased along with a slight red-shift of the characteristic emission wavelength (lambda(em)) with the increase of solvent polarity. Maximum Or value of 0.453 for HEAN was found in water solvent with a Stokes shift of 4636 cm(-1). The inhibition of the photoinduced electron transfer (PET) by the intermolecular hydrogen-bonding interactions between protic solvents and HEAN was proposed to be responsible for its strong fluorescence enhancement. Such solvatofluorochromic property of HEAN may make it as a prospective fluorescent chemosensor to distinguish a protic solvent from aprotic solvents. (c) 2008 Elsevier B.V. All rights reserved.