Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus

IMPACT FACTOR 2018: 0.975
5-year IMPACT FACTOR: 1.021

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.327
Source Normalized Impact per Paper (SNIP) 2018: 0.391

See all formats and pricing
More options …
Volume 214, Issue 5


Anion Rotation and Cation Transport in the Rotor Phase α -Sodium Orthophosphate: Paddle-Wheel Mechanism Redefined in View of New Experimental Results

M. Witschas / Hellmut Eckert / Dirk Wilmer / R.D. Banhatti / H. Funke / J. Fitter / Ruep E. Lechner / G. Korus / Martin Jansen
Published Online: 2009-09-25 | DOI: https://doi.org/10.1524/zpch.2000.214.5.643

The high-temperature phase of sodium ortho-phosphate, α -Na3PO4, is characterized by a dynamic rotational disorder of its polyatomic anions and, at the same time, by a considerable translational mobility of its cations. During the past decade, there has been considerable controversy about the question of whether both kinds of motion are dynamically coupled. To resolve this issue we have probed anionic and cationic motion individually over a wide range of experimental time scales. Coherent quasielastic neutron scattering as well as temperature-dependent 17O NMR lineshape and relaxation spectroscopy serve to characterize the rotational motion of the anions, whereas the cation motion is probed by high-frequency conductivity and 23Na NMR relaxation measurements. On the picosecond timescale, the combined interpretation of the neutron scattering and electrical conductivity data suggests strong dynamic coupling between the rotation of the phosphate groups about one of the four threefold P-O axes and the spatial fluctuations of nearby sodium ions. On more extended timescales, the NMR data indicate an additional, slower process, corresponding to dynamic jump reorientations of the C3 axis of rotation. This process appears to be coupled to the translational Na+ transport dynamics as suggested by a strong correspondence between the 17O and 23Na NMR relaxation characteristics and the electrical conductivities in the dc plateau region. The Na+ transport process can be viewed as highly correlated, not unlike the chain mechanism observed in AgBr.

About the article

Published Online: 2009-09-25

Published in Print: 2000-05-01

Citation Information: Zeitschrift für Physikalische Chemie, Volume 214, Issue 5, Pages 643–, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1524/zpch.2000.214.5.643.

Export Citation

© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München.Get Permission

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

Dirk Wilmer and Hinrich-Wilhelm Meyer
Zeitschrift für Physikalische Chemie, 2009, Volume 223, Number 10-11, Page 1341
Leo van Wüllen, Lars Hildebrandt, and Martin Jansen
Solid State Ionics, 2005, Volume 176, Number 15-16, Page 1449
D. Wilmer, H. Feldmann, R.E. Lechner, and J. Combet
Journal of Materials Research, 2005, Volume 20, Number 08, Page 1973
D. Wilmer, H. Feldmann, R.E. Lechner, and J. Combet
MRS Proceedings, 2004, Volume 835
A.V. Skripov, A.V. Soloninin, O.A. Babanova, and R.V. Skoryunov
Journal of Alloys and Compounds, 2015, Volume 645, Page S428
Arno Pfitzner and Klaus-Dieter Kreuer
Nachrichten aus der Chemie, 2001, Volume 49, Number 3, Page 284
J. Christian Schön, Klaus Doll, and Martin Jansen
physica status solidi (b), 2010, Volume 247, Number 1, Page 23
Maria Forsyth, Tarekegn Chimdi, Aaron Seeber, Daniel Gunzelmann, and Patrick C. Howlett
J. Mater. Chem. A, 2014, Volume 2, Number 11, Page 3993
Klaus Funke
Science and Technology of Advanced Materials, 2013, Volume 14, Number 4, Page 043502
Alexander V. Skripov, Alexei V. Soloninin, Morten B. Ley, Torben R. Jensen, and Yaroslav Filinchuk
The Journal of Physical Chemistry C, 2013, Volume 117, Number 29, Page 14965
M. Pompetzki and M. Jansen
Zeitschrift für anorganische und allgemeine Chemie, 2002, Volume 628, Number 3, Page 641
Lars Hildebrandt, Robert Dinnebier, and Martin Jansen
Zeitschrift für anorganische und allgemeine Chemie, 2005, Volume 631, Number 9, Page 1660
Bashir M Suleiman and Arnold Lundén
Journal of Physics: Condensed Matter, 2003, Volume 15, Number 41, Page 6911
Leo van Wüllen, Natalia Sofina, and Martin Jansen
ChemPhysChem, 2004, Volume 5, Number 12, Page 1906
Markus Pompetzki, Robert E. Dinnebier, and Martin Jansen
Solid State Sciences, 2003, Volume 5, Number 11-12, Page 1439

Comments (0)

Please log in or register to comment.
Log in