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

Abstract

We perform a systematic investigation of the resonance and vibrational properties of naphthyl-terminated 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.

The following article has been accepted by Journal of Chemical Physics. After it is published, it will be found at http://jcp.aip.org/

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Cited by in corpus (7)

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• Vibrational characterization of dinaphthylpolyynes: A model system for the study of end-capped sp carbon chains
• Synthesis And Characterization Of Polyynes End-Capped By Biphenyl Groups ({\Alpha},Ω-Biphenylpolyynes)
• Vibrational and nonlinear optical properties of amine-capped push-pull polyynes by infrared and Raman spectroscopy
• Thermal formation of carbynes
• Nitrogen-tailored quasiparticle energy gaps of polyynes