Molecular structure-spectroscopic property relationships in a series of transition metal-containing phenylacetylene oligomers

被引:37
作者
Cooper, TM
McLean, DG
Rogers, JE
机构
[1] USAF, Res Lab, Dept AF, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA
[2] Sci Applicat Int Corp, Dayton, OH 45434 USA
[3] Concepts Inc, Tech Management, Wright Patterson AFB, OH 45433 USA
关键词
D O I
10.1016/S0009-2614(01)01161-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
To develop novel nonlinear dyes for photonic applications, we synthesized a series of transition metal-containing phenylacetylene oligomers. The optical properties of these compounds were measured by UV/Vis, fluorescence, long-pathlength UV/Vis and nanosecond flash photolysis experiments. The sensitivity of the state energies to molecular size was a measure of their delocalization. The S-0 and T-1 states were found to be more localized than the S-1 and T-n states. The results were consistent with the S-0 --> S-1 and T-1 --> T-n transitions having charge transfer character, while the T-1 --> S-0 transition was from a confined state to another confined state. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码:31 / 36
页数:6
相关论文
共 26 条
[1]   Spatial extent of the singlet and triplet excitons in transition metal-containing poly-ynes [J].
Beljonne, D ;
Wittmann, HF ;
Kohler, A ;
Graham, S ;
Younus, M ;
Lewis, J ;
Raithby, PR ;
Khan, MS ;
Friend, RH ;
Bredas, JL .
JOURNAL OF CHEMICAL PHYSICS, 1996, 105 (09) :3868-3877
[2]  
BLAUDEAU J, 2001, UNPUB
[3]   Transition metal complexes containing allenylidene, cumulenylidene, and related ligands [J].
Bruce, MI .
CHEMICAL REVIEWS, 1998, 98 (08) :2797-2858
[4]   Synthesis and electronic structure of platinum-containing poly-ynes with aromatic and heteroaromatic rings [J].
Chawdhury, N ;
Kohler, A ;
Friend, RH ;
Younus, M ;
Long, NJ ;
Raithby, PR ;
Lewis, J .
MACROMOLECULES, 1998, 31 (03) :722-727
[5]   Evolution of lowest singlet and triplet excited states with number of thienyl rings in platinum poly-ynes [J].
Chawdhury, N ;
Köhler, A ;
Friend, RH ;
Wong, WY ;
Lewis, J ;
Younus, M ;
Raithby, PR ;
Corcoran, TC ;
Al-Mandhary, MRA ;
Khan, MS .
JOURNAL OF CHEMICAL PHYSICS, 1999, 110 (10) :4963-4970
[6]  
DEMAS JN, 1971, J PHYS CHEM-US, V75, P991, DOI 10.1021/j100678a001
[7]   2-PHOTON ABSORPTION-INDUCED THERMAL EFFECTS IN PLATINUM POLY-YNES [J].
GUHA, S ;
KANG, K ;
PORTER, PL .
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1991, 53 (5-6) :308-313
[8]  
KINGSBOROUGH RP, 1999, PROG INORG CHEM, P48
[9]   Charge separation in localized and delocalized electronic states in polymeric semiconductors [J].
Köhler, A ;
dos Santos, DA ;
Beljonne, D ;
Shuai, Z ;
Brédas, JL ;
Holmes, AB ;
Kraus, A ;
Müllen, K ;
Friend, RH .
NATURE, 1998, 392 (6679) :903-906
[10]  
Lever ABP, 1999, INORGANIC ELECTRONIC STRUCTURE AND SPECTROSCOPY, VOL II, P227