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Title: Raman and nuclear magnetic resonance investigation of alkali metal vapor interaction with alkene-based anti-relaxation coating

Abstract

The use of anti-relaxation coatings in alkali vapor cells yields substantial performance improvements compared to a bare glass surface by reducing the probability of spin relaxation in wall collisions by several orders of magnitude. Some of the most effective anti-relaxation coating materials are alpha-olefins, which (as in the case of more traditional paraffin coatings) must undergo a curing period after cell manufacturing in order to achieve the desired behavior. Until now, however, it has been unclear what physicochemical processes occur during cell curing, and how they may affect relevant cell properties. We present the results of nondestructive Raman-spectroscopy and magnetic-resonance investigations of the influence of alkali metal vapor (Cs or K) on an alpha-olefin, 1-nonadecene coating the inner surface of a glass cell. It was found that during the curing process, the alkali metal catalyzes migration of the carbon-carbon double bond, yielding a mixture of cis- and trans-2-nonadecene.

Authors:
 [1];  [2];  [3];  [4];  [5]
  1. Physical faculty, St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034 (Russian Federation)
  2. Department of Chemistry, University of California at Berkeley, Berkeley, California 94720 (United States)
  3. Helmholtz Institute Mainz, Johannes Gutenberg University, 55099 Mainz (Germany)
  4. Resource Center “Optical and laser methods of material research,” St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034 (Russian Federation)
  5. Center for Magnetic Resonance, St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034 (Russian Federation)
Publication Date:
OSTI Identifier:
22660890
Resource Type:
Journal Article
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 144; Journal Issue: 9; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9606
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALKALI METALS; COATINGS; CURING; DOUBLE BONDS; EXPERIMENTAL DATA; NUCLEAR MAGNETIC RESONANCE; RAMAN SPECTROSCOPY; VAPORS

Citation Formats

Tretiak, O. Yu., E-mail: otretiak@genphys.ru, Balabas, M. V., Blanchard, J. W., Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Helmholtz Institute Mainz, Johannes Gutenberg University, 55099 Mainz, Budker, D., Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Olshin, P. K., and Smirnov, S. N. Raman and nuclear magnetic resonance investigation of alkali metal vapor interaction with alkene-based anti-relaxation coating. United States: N. p., 2016. Web. doi:10.1063/1.4943123.
Tretiak, O. Yu., E-mail: otretiak@genphys.ru, Balabas, M. V., Blanchard, J. W., Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Helmholtz Institute Mainz, Johannes Gutenberg University, 55099 Mainz, Budker, D., Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Olshin, P. K., & Smirnov, S. N. Raman and nuclear magnetic resonance investigation of alkali metal vapor interaction with alkene-based anti-relaxation coating. United States. https://doi.org/10.1063/1.4943123
Tretiak, O. Yu., E-mail: otretiak@genphys.ru, Balabas, M. V., Blanchard, J. W., Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Helmholtz Institute Mainz, Johannes Gutenberg University, 55099 Mainz, Budker, D., Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Olshin, P. K., and Smirnov, S. N. Mon . "Raman and nuclear magnetic resonance investigation of alkali metal vapor interaction with alkene-based anti-relaxation coating". United States. https://doi.org/10.1063/1.4943123.
@article{osti_22660890,
title = {Raman and nuclear magnetic resonance investigation of alkali metal vapor interaction with alkene-based anti-relaxation coating},
author = {Tretiak, O. Yu., E-mail: otretiak@genphys.ru and Balabas, M. V. and Blanchard, J. W. and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 and Helmholtz Institute Mainz, Johannes Gutenberg University, 55099 Mainz and Budker, D. and Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300 and Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 and Olshin, P. K. and Smirnov, S. N.},
abstractNote = {The use of anti-relaxation coatings in alkali vapor cells yields substantial performance improvements compared to a bare glass surface by reducing the probability of spin relaxation in wall collisions by several orders of magnitude. Some of the most effective anti-relaxation coating materials are alpha-olefins, which (as in the case of more traditional paraffin coatings) must undergo a curing period after cell manufacturing in order to achieve the desired behavior. Until now, however, it has been unclear what physicochemical processes occur during cell curing, and how they may affect relevant cell properties. We present the results of nondestructive Raman-spectroscopy and magnetic-resonance investigations of the influence of alkali metal vapor (Cs or K) on an alpha-olefin, 1-nonadecene coating the inner surface of a glass cell. It was found that during the curing process, the alkali metal catalyzes migration of the carbon-carbon double bond, yielding a mixture of cis- and trans-2-nonadecene.},
doi = {10.1063/1.4943123},
url = {https://www.osti.gov/biblio/22660890}, journal = {Journal of Chemical Physics},
issn = {0021-9606},
number = 9,
volume = 144,
place = {United States},
year = {2016},
month = {3}
}