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Raman Spectroscopy of Polyconjugated Molecules and Materials: Confinement Effect in One and Two Dimensions

Chiara Castiglioni, Matteo Tommasini and Giuseppe Zerbi
Philosophical Transactions: Mathematical, Physical and Engineering Sciences
Vol. 362, No. 1824, Raman Spectrocsopy in Carbons: From Nanotubes to Diamond (Nov. 15, 2004), pp. 2425-2459
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/4488959
Page Count: 35
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Raman Spectroscopy of Polyconjugated Molecules and Materials: Confinement Effect in One and Two Dimensions
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Abstract

The effect of the confinement of π electrons in one- and two-dimensional domains is illustrated with several examples ranging from linear polyene chains to planar molecules with honeycomb structure. Theoretical computations and specific Raman experiments on molecular materials demonstrate that a molecular approach provides a unified key to the interpretation of the Raman response both of linear polyconjugated polymers (polyacetylene) and of nanostructured graphitic materials.

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