Effective conjugation length and UV/vis spectra of oligomers
Authors:
- 1 September 1997
- journal article
- research article
- Published by Wiley in Acta Polymerica
- Vol. 48 (9) , 379-384
Abstract
On the basis of an extended series of monodisperse oligomers of the dialkoxy‐substituted phenyleneethenylenes 1a–i the Eqs. (3) and (4) were conceived in order to determine the limiting values of the energies Ei and the wavelengths λi of the UV/vis absorption. The convergence of the Ei, and λi values with a growing number n of repeating units permits a precise prediction of the Ei,∞ and λi,∞ values of the corresponding polymer 1j as well as a statement about the overall effect of conjugation ΔEi and the effective conjugation length ECL. A great variety of different conjugated oligomers 2–14 can be evaluated by the same algorithm.Keywords
This publication has 34 references indexed in Scilit:
- On the conjugation length in poly(para‐phenylene)‐type polymersAdvanced Materials, 1995
- Conjugated polymers and oligomers: Designing novel materials using a quantum‐chemical approachAdvanced Materials, 1995
- Third-Order Nonlinear Optical Properties of Oligomers of Thienyleneethynylenes and ThienylenevinyleneThe Journal of Physical Chemistry, 1994
- Geometry‐induced charge localization in doped phenylene chainsAdvanced Materials, 1993
- Extended π-systems in conjugated oligomers and polymers - the longer, the better?Pure and Applied Chemistry, 1993
- Absorption spectra of charged oligo (phenylenevinylene)s: On the detection of polaronic and bipolaronic statesAdvanced Materials, 1991
- Optical spectra and structure of oligomeric models of polyparaphenylenevinyleneThe Journal of Chemical Physics, 1991
- Novel oligo(phenylenevinylenes): models for the charging of extended .pi. chainsJournal of the American Chemical Society, 1991
- Poly(phenylenvinylen); Entwicklung eines elektroaktiven Polymermaterials vom unschmelzbaren Pulver zum transparenten FilmZeitschrift für Chemie, 1987
- Absorption Spectra and Chemical Structures. I. Conjugated Polyenes and p-PolyphenylsJournal of the American Chemical Society, 1955