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Vibrational R aman Shifts and Aromaticity: The Case of Oligothiophenes
Author(s) -
Casado Juan,
Hernández Víctor,
López Navarrete Juan T.
Publication year - 2015
Publication title -
the chemical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.61
H-Index - 78
eISSN - 1528-0691
pISSN - 1527-8999
DOI - 10.1002/tcr.201500025
Subject(s) - aromaticity , delocalized electron , molecule , electron delocalization , spectral line , chemistry , computational chemistry , chemical physics , physics , organic chemistry , quantum mechanics
A general description of the use of the R aman spectra of polyconjugated molecules to infer their electronic and molecular properties and how these change in a number of situations is illustrated with several examples, with particular emphasis on oligothiophene molecules. The most noticeable features of the R aman spectra of these molecules and the main theoretical models developed for their understanding have been revised and explained in terms related to π‐electron delocalization intimately connected with the aromatic and quinoidal characters.