Dipole moments studies of fluorenone and 4-hydroxyfluorenone.

作者: Marek Józefowicz , Janina R. Heldt

DOI: 10.1016/J.SAA.2006.07.019

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摘要: Abstract Electronic absorption, excitation and fluorescence spectra of fluorenone 4-hydroxyfluorenone were recorded at room temperature in several aprotic solvent varying polarities. The ground (μg) excited (μe) state dipole moments both molecules estimated from solvatochromic shifts absorption as a function the dielectric constant (ɛ) refractive index (n). These experimental results completed with theoretical quantum chemical calculations (AM1). compared. It was determined that higher than those for molecules.

参考文章(18)
Yizhak Marcus, The properties of solvents ,(1998)
John R. Lombardi, Dipole Moments of the Lowest Singlet π* ← π States in Phenol and Aniline by the Optical Stark Effect The Journal of Chemical Physics. ,vol. 50, pp. 3780- 3783 ,(1969) , 10.1063/1.1671626
A. Kawski, B. Kukliński, P. Bojarski, Dipole moment of aniline in the excited S1 state from thermochromic effect on electronic spectra Chemical Physics Letters. ,vol. 415, pp. 251- 255 ,(2005) , 10.1016/J.CPLETT.2005.09.008
A. N. Pankratov, Quantum-Chemical Estimate of Dipole Moments of Tropones and Tropolones Chemistry of Natural Compounds. ,vol. 39, pp. 553- 562 ,(2003) , 10.1023/B:CONC.0000018109.29629.6A
Marek Józefowicz, Janina R Heldt, Preferential solvation of fluorenone and 4-hydroxyfluorenone in binary solvent mixtures Chemical Physics. ,vol. 294, pp. 105- 116 ,(2003) , 10.1016/S0301-0104(03)00379-3
T. Kobayashi, S. Nagakura, Picosecond time-resolved spectroscopy and the intersystem crossing rates of anthrone and fluorenone Chemical Physics Letters. ,vol. 43, pp. 429- 434 ,(1976) , 10.1016/0009-2614(76)80593-3
Richard W. Fessenden, Paul M. Carton, H. Shimamori, Juan C. Scaiano, Measurement of the dipole moments of excited states and photochemical transients by microwave dielectric absorption The Journal of Physical Chemistry. ,vol. 86, pp. 3803- 3811 ,(1982) , 10.1021/J100216A020
Keitaro Yoshihara, David R. Kearns, Spectroscopic Properties of the Lower‐Lying Excited States of Fluorenone The Journal of Chemical Physics. ,vol. 45, pp. 1991- 1999 ,(1966) , 10.1063/1.1727883
Michael J. S. Dewar, Eve G. Zoebisch, Eamonn F. Healy, James J. P. Stewart, Development and use of quantum mechanical molecular models. 76. AM1: a new general purpose quantum mechanical molecular model Journal of the American Chemical Society. ,vol. 107, pp. 3902- 3909 ,(1985) , 10.1021/JA00299A024