SPECTROSCOPIC INVESTIGATION OF FLUORESCENCE QUENCHING AGENTS .2. EFFECT OF NITROMETHANE ON THE FLUORESCENCE EMISSION BEHAVIOR OF 36 ALTERNANT BENZENOID POLYCYCLIC AROMATIC-HYDROCARBONS

被引：42
作者：
TUCKER, SA
DARMODJO, H
ACREE, WE
FETZER, JC
ZANDER, M
机构：
[1] UNIV N TEXAS,DEPT CHEM,DENTON,TX 76203
[2] CHEVRON RES & TECHNOL CTR,RICHMOND,CA 94802
[3] RUTGERSWERKE AG,W-4620 CASTROP RAUXEL,GERMANY
来源：
APPLIED SPECTROSCOPY | 1992年 / 46卷 / 08期
关键词：
D O I：
10.1366/0003702924123872
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Nitromethane is examined as a selective quenching agent for discriminating between "alternant" versus "nonalternant" polycyclic aromatic hydrocarbons in unknown mixtures. Of the 36 benzenoid solutes studied, only dibenzo[hi,wx]heptaphene failed to obey the selective quenching rule. Also reported are new experimental fluorescence probe studies for dibenzo[de,st]pentacene, dibenzo[fg,qr]pentacene, naphtho[8,1,2hij]-hexaphene, benzo[vwx]hexaphene, benzo[1,2,3cd;4,5,6c'd']diperylene, dibenzo[hi,wx]heptacene, benzo[b]triphenylene, chrysense, and anthracene dissolved in nonelectrolyte solvents of varying polarity. Benzo[vwx]hexaphene was found to exhibit probe character, as evidenced by a systematic variation in emission intensity ratio with solvent polarity.
引用
收藏
页码：1260 / 1265
页数：6
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