Raman spectra of terephthalic acid crystals in the temperature range 5K–300K

Raman spectra of terephthalic acid crystals in the temperature range 5K–300K Raman spectra of terephthalic acid crystals were taken in the temperature range 5K–300K. The temperature dependence of the vibrational frequency of the O⋯O hydrogen bond is found to contain information on the mechanism of the proton motion along the bond (hopping and/or tunneling). Onset temperatures of both tunneling and ordering (termination of the hopping) process are determined. Triplet exciton bands observed in the high-wavenumber spectral range also exhibit the relation with proton motions between oxygen atoms. The energy spectra of molecular chains of terephthalic acid, the proton potential energy along the bond, and the probabilities of tunneling as a function of the hydrogen bond lengths are calculated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Elsevier

Raman spectra of terephthalic acid crystals in the temperature range 5K–300K

Loading next page...
 
/lp/elsevier/raman-spectra-of-terephthalic-acid-crystals-in-the-temperature-range-baubYTu0JW
Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier B.V.
ISSN
1386-1425
D.O.I.
10.1016/j.saa.2018.05.065
Publisher site
See Article on Publisher Site

Abstract

Raman spectra of terephthalic acid crystals were taken in the temperature range 5K–300K. The temperature dependence of the vibrational frequency of the O⋯O hydrogen bond is found to contain information on the mechanism of the proton motion along the bond (hopping and/or tunneling). Onset temperatures of both tunneling and ordering (termination of the hopping) process are determined. Triplet exciton bands observed in the high-wavenumber spectral range also exhibit the relation with proton motions between oxygen atoms. The energy spectra of molecular chains of terephthalic acid, the proton potential energy along the bond, and the probabilities of tunneling as a function of the hydrogen bond lengths are calculated.

Journal

Spectrochimica Acta Part A: Molecular and Biomolecular SpectroscopyElsevier

Published: Sep 5, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off