Vibrational characterization of dinaphthylpolyynes: A model system for the study of end-capped sp carbon chains

E. Cinquanta, L. Ravagnan, Ivano Eligio Castelli, F. Cataldo, N. Manini, G. Onida, P. Milani

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Abstract

We perform a systematic investigation of the resonance and vibrational properties of naphthylterminated sp carbon chains (dinaphthylpolyynes) by combined multi-wavelength resonant Raman (MWRR) spectroscopy, ultraviolet-visible spectroscopy, and Fourier-transform infrared (FT-IR) spectroscopy, plus ab initio density functional theory (DFT) calculations. We show that the MWWR and FT-IR spectroscopies are particularly suited to identify chains of different lengths and different terminations, respectively. By DFT calculations, we further extend those findings to sp carbon chains end-capped by other organic structures. The present analysis shows that combined MWRR and FT-IR provide a powerful tool to draw a complete picture of chemically stabilized sp carbon chains.
Original languageEnglish
JournalJournal of Chemical Physics
Volume135
ISSN0021-9606
DOIs
Publication statusPublished - 2011
Externally publishedYes

Bibliographical note

© 2011 American Institute of Physics

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