SPECTROSCOPIC CHARACTERIZATION AND LANGMUIR-BLODGETT-FILMS OF N,N-SYMMETRICAL DIALKYL-3,4/9,10-PERYLENEBIS(DICARBOXIMIDE)S

被引：16
|
作者：
MAITI, AK
AROCA, R
NAGAO, Y
机构：
[1] UNIV WINDSOR, DEPT CHEM & BIOCHEM, MAT & SURFACE SCI GRP, WINDSOR N9B 3P4, ONTARIO, CANADA
[2] UNIV TOKYO, DEPT IND CHEM, NODA 278, JAPAN
来源：
JOURNAL OF RAMAN SPECTROSCOPY | 1993年 / 24卷 / 06期
关键词：
D O I：
10.1002/jrs.1250240603
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
The electronic and vibrational spectra of N-R-N'-R-symmetrical dialkyl-3,4:9,10-perylenebis(dicarboximide)s (R = C5H11, C6H13 and C8H17) are reported. Langmuir monolayers were prepared and surface pressure-area isotherms were measured for three non-amphiphilic molecules. Langmuir-Blodgett (LB) films of mixed layers only were fabricated on solid substrates. Fundamental vibrational frequencies were observed using surface-enhanced resonance Raman scattering, transmission and reflection-absorption (RAIRS) Fourier transform infrared spectroscopy. The molecular orientation in the LB films was established from the transmission and RAIRS spectra. Molecular aggregation is reduced by the presence of bulky alkyl substituents. The adsorption of electron acceptor molecules and its effect on the fluorescence yield are also reported.
引用
收藏
页码：351 / 356
页数：6
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