POLYCYCLIC AROMATIC HYDROCARBON SOLUTE PROBES .7. EVALUATION OF ADDITIONAL CORONENE DERIVATIVES AS POSSIBLE SOLVENT POLARITY PROBE MOLECULES

被引:31
作者
ACREE, WE
TUCKER, SA
ZVAIGZNE, AI
STREET, KW
FETZER, JC
GRUTZMACHER, HF
机构
[1] CHEVRON RES CO, RICHMOND, CA 94802 USA
[2] KENT STATE UNIV, DEPT CHEM, KENT, OH 44242 USA
[3] UNIV BIELEFELD, DEPT CHEM, W-4800 BIELEFELD 1, GERMANY
关键词
Fluorescence; -; Spectroscopy; Applications;
D O I
10.1366/0003702904086326
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Fluorescence emission spectra are reported for dinaphtho [8,1,2abc; 2′,1′,8′klm]coronene, naphtho[8,1,2abc]coronene, naphth[2′,1′,8′,7′: 4,10,5]anthra[1,9,8abcd]coronene, dibenzo[bc,ef]coronene, benzo[1,2,3bc;4,5,6b′c′]dicoronene, anthra[2,3a]coronene, dinaphtho[8,1,2abc;2′,1′,8′jkl]coronene, and tetrabenzo[de,hi,mn,qr]naphthacene dissolved in n-hexadecane, butyl acetate, dichloromethane, and acetonitrile. Results of these measurements are used to screen PAHs for potential solvent polarity probed behavior. Of the eight PAHs studied, only naphtho[8,1,2abc]coronene, dinaptho[8,1,2abc;2′,1′,8′klm]coronene, and anthra[2,3a]coronene were classified as probed molecules. The fluorescence spectra of the first two PAHs show selective enhancement of the I band emission intensity in polar solvents. For anthra[2,3a]coronene, the measured ratio of emission intensities of bands I and II decreased systematically with increasing solvent polarity.
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页码:477 / 482
页数:6
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