Identification of the light-absorbing states in tolane with potential relevance to self-similar phenylacetylene dendrimers

被引：19

作者：

Borst, DR ^{[1
]}

Chou, SG ^{[1
]}

Pratt, DW ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 343卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(01)00696-0

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：

We report the observation and analysis of the high resolution fluorescence excitation spectrum of tolane (or diphenylacetylene, DPA) in a molecular beam. This analysis shows that the first one-photon-allowed state in DPA has B-1(1u) symmetry, a consequence of exciton-like coupling between the two La-1 states of the connected phenylacetylene, (PA) units. The resulting long-axis polarization of the B-1(1u)-(1)A(g) transition of each linear segment is responsible for the diverse optical properties of PA dendrimers. (C) 2001 Elsevier Science BN. All rights reserved.

引用

页码：289 / 295

页数：7

共 21 条

[1] COMPUTER-ASSISTANCE IN THE ANALYSIS OF MOLECULAR-SPECTRA .1. ROTATIONAL STRUCTURE OF HIGH-RESOLUTION SINGLET SINGLET BANDS [J].