The role of α-cyclodextrin cavity size on the fluorescence of 4-diethylaminobenzonitrile aqueous solution
DOI: 10.1016/0009-2614(94)00853-1
关键词: Fluorescence 、 Cyclodextrin 、 Cavity size 、 Intramolecular force 、 Excited state 、 Chemistry 、 Aqueous solution 、 Photochemistry
摘要: Abstract The fluorescence spectrum of 4-diethylaminobenzonitrile (DEABN) is compared with that 4-dimethylaminobenzonitrile (DMABN) in α-cyclodextrin (CD) aqueous solution. absence the twisted intramolecular charge transfer (TICT) band around 460 nm case DEABN and its presence DMABN attributed to role α-CD cavity size on TICT phenomenon. diethylamino group bigger than dimethylamino most probably interlocked hydrophobic environment and, therefore, unable rotate during excited state lifetimes. This supported by decay results.
harvard.edu
elsevier.com
sci-hub.se 参考文章(18)
Kazuo Kasatani, Masahiro Kawasaki, Hiroyasu Sato, Lifetime shortening of the photoisomer of a cyanine dye by inclusion in a cyclodextrin cavity as revealed by transient absorption spectroscopy The Journal of Physical Chemistry. ,vol. 88, pp. 5451- 5453 ,(1984) , 10.1021/J150667A001
Kankan. Bhattacharyya, Mihir. Chowdhury, Environmental and magnetic field effects on exciplex and twisted charge transfer emission Chemical Reviews. ,vol. 93, pp. 507- 535 ,(1993) , 10.1021/CR00017A022
G. Sidney Cox, Paul J. Hauptman, Nicholas J. Turro, DIALKYLAMINOBENZONITRILES AS FLUORESCENCE POLARITY PROBES FOR AQUEOUS SOLUTIONS OF CYCLODEXTRINS Photochemistry and Photobiology. ,vol. 39, pp. 597- 601 ,(1984) , 10.1111/J.1751-1097.1984.TB03896.X
Takehiko Yorozu, Mikio Hoshino, Masashi Imamura, Fluorescence studies of pyrene inclusion complexes with .alpha.-, .beta.-, and .gamma.-cyclodextrins in aqueous solutions. Evidence for formation of pyrene dimer in .gamma.-cyclodextrin cavity The Journal of Physical Chemistry. ,vol. 86, pp. 4426- 4429 ,(1982) , 10.1021/J100219A031
V. Ramamurthy, David F. Eaton, Photochemistry and photophysics within cyclodextrin cavities Accounts of Chemical Research. ,vol. 21, pp. 300- 306 ,(1988) , 10.1021/AR00152A003
Ashis Nag, Kankan Bhattacharyya, Dual luminescence of dimethylaminobenzonitrile in γ-cyclodextrin. Environmental effects on twisted intramolecular charge-transfer phenomenon Journal of the Chemical Society, Faraday Transactions. ,vol. 86, pp. 53- 54 ,(1990) , 10.1039/FT9908600053
Khader A. Al-Hassan, Tohru Azumi, Fluorescence decay characteristics of 4-dimethylaminobenzonitrile in different polymer matrices: A time-resolved study in the nanosecond range Chemical Physics Letters. ,vol. 163, pp. 129- 134 ,(1989) , 10.1016/0009-2614(89)80023-5
Sambhu N. Datta, Carl S. Ewig, John R. van Wazer, Application of effective potentials to relativistic hartree—fock calculations Chemical Physics Letters. ,vol. 57, pp. 83- 89 ,(1978) , 10.1016/0009-2614(78)80356-X
Mikio Hoshino, Masashi Imamura, Kiyoshi Ikehara, Yoshimasa Hama, Fluorescence enhancement of benzene derivatives by forming inclusion complexes with .beta.-cyclodextrin in aqueous solutions The Journal of Physical Chemistry. ,vol. 85, pp. 1820- 1823 ,(1981) , 10.1021/J150613A012
Hans Bender, (1→4)-α-d-Glucopyranosyltransfer-produkte aus cyclohexaamylose Carbohydrate Research. ,vol. 65, pp. 85- 97 ,(1978) , 10.1016/S0008-6215(00)84215-9