Vibrational spectroscopy of linear carbon chains

Chien Pin Chou, Wun Fan Li, Henryk A. Witek, Marcin Andrzejak

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

A detailed theoretical study of geometric, electronic, vibrational, and spec-troscopic properties of linear carbon chains is presented. The study is supplemented with an extensive survey of available experimental and theo-retical results. Our calculations constitute a bridge between the quantum-chemical and solid-state simulations, using the SCC-DFTB (self-consistent-charge density-functional tight-binding) methodology. The computed equi-librium geometry, electronic band structure, and phonon dispersion curves of infinite carbon chains are compared with analogous results obtained for finite oligomers. A surprisingly fast convergence of all the studied properties of the finite systems to the infinite limit and a rather short-ranged influence of the terminal sections of the chain are observed. The molecular calculations display analogues of well known solid state physics phenomena, such as Peierls distortion or Kohn anomaly. The presented IR and Raman spectra of finite chains show that the infinite limit is approached rapidly both in the frequency and intensity domain. For a constant mass sample, the intensity of the IR signal is inversely proportional to the number of carbons atoms in the chain, while the intensity of the main Raman band becomes independent on the chain length. The satellite bands and terminal group vibrations disappear from the Raman spectra already for relatively short chains.

Original languageEnglish
Title of host publicationSpectroscopy, Dynamics and Molecular Thoery of Carbon Plasmas and Vapors
Subtitle of host publicationAdvances in the Understanding of the Most Complex High-Temperature Elemental System
PublisherWorld Scientific Publishing Co.
Pages375-415
Number of pages41
ISBN (Electronic)9789812837653
ISBN (Print)9812837647, 9789812837646
DOIs
Publication statusPublished - 2011 Jan 1
Externally publishedYes

Fingerprint

Vibrational spectroscopy
Spectrum Analysis
Carbon
Raman scattering
Phonons
Solid state physics
Chlordiazepoxide
Physics
Vibration
Charge density
Chain length
Oligomers
Band structure
Theoretical Models
Satellites
Atoms
Geometry

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemistry(all)
  • Engineering(all)

Cite this

Chou, C. P., Li, W. F., Witek, H. A., & Andrzejak, M. (2011). Vibrational spectroscopy of linear carbon chains. In Spectroscopy, Dynamics and Molecular Thoery of Carbon Plasmas and Vapors: Advances in the Understanding of the Most Complex High-Temperature Elemental System (pp. 375-415). World Scientific Publishing Co.. https://doi.org/10.1142/9789812837653_0012

Vibrational spectroscopy of linear carbon chains. / Chou, Chien Pin; Li, Wun Fan; Witek, Henryk A.; Andrzejak, Marcin.

Spectroscopy, Dynamics and Molecular Thoery of Carbon Plasmas and Vapors: Advances in the Understanding of the Most Complex High-Temperature Elemental System. World Scientific Publishing Co., 2011. p. 375-415.

Research output: Chapter in Book/Report/Conference proceedingChapter

Chou, CP, Li, WF, Witek, HA & Andrzejak, M 2011, Vibrational spectroscopy of linear carbon chains. in Spectroscopy, Dynamics and Molecular Thoery of Carbon Plasmas and Vapors: Advances in the Understanding of the Most Complex High-Temperature Elemental System. World Scientific Publishing Co., pp. 375-415. https://doi.org/10.1142/9789812837653_0012
Chou CP, Li WF, Witek HA, Andrzejak M. Vibrational spectroscopy of linear carbon chains. In Spectroscopy, Dynamics and Molecular Thoery of Carbon Plasmas and Vapors: Advances in the Understanding of the Most Complex High-Temperature Elemental System. World Scientific Publishing Co. 2011. p. 375-415 https://doi.org/10.1142/9789812837653_0012
Chou, Chien Pin ; Li, Wun Fan ; Witek, Henryk A. ; Andrzejak, Marcin. / Vibrational spectroscopy of linear carbon chains. Spectroscopy, Dynamics and Molecular Thoery of Carbon Plasmas and Vapors: Advances in the Understanding of the Most Complex High-Temperature Elemental System. World Scientific Publishing Co., 2011. pp. 375-415
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