Raman spectroscopy of polyconjugated molecules and materials: confinement effect in one and two dimensions.
The effect of the confinement of pi 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.
Dipartimento di Chimica, Materiali e Ingegneria Chimica G. Natta, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy. chiara.castiglioni@polimi.it
Chiara
C
Castiglioni
Matteo
M
Tommasini
Giuseppe
G
Zerbi
D000114:Acetylene / Q000031:analogs & derivatives* / Q000737:chemistry; D002244:Carbon / Q000737:chemistry*; D004583:Electrons; D006108:Graphite / Q000737:chemistry; D008956:Models, Chemical; D043942:Nanotubes / Q000737:chemistry*; D010825:Physics / Q000379:methods*; D011090:Polyenes / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D053279:Polyynes; D013059:Spectrum Analysis, Raman / Q000379:methods*
D011090:Polyenes; D011108:Polymers; D053279:Polyynes; D002244:Carbon; D006108:Graphite; D000114:Acetylene