Thermal Expansion Behavior in TcO2. Towards breaking the Tc-Tc bond.
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Open Access
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ArticleAuthor/s
Reynolds, EmilyZhang, Zhaoming
Avdeev, Maxim
Thorogod, Gordon J
Poineau, Frederic
Czerwinski, Kenneth R
Kimpton, Justin A
Kennedy, Brendan J
Abstract
The structure of TcO2 between 25 and 1000 °C has been determined in-situ using powder diffraction methods and is found to remain monoclinic in space group P21/c. The thermal expansion in TcO2 is highly anisotropic with negative thermal ex-pansion of the b-axis observed above 700 °C. This is the result of an anomalous expansion along the a-axis that is a consequence of weakening of the Tc-Tc bonds.The structure of TcO2 between 25 and 1000 °C has been determined in-situ using powder diffraction methods and is found to remain monoclinic in space group P21/c. The thermal expansion in TcO2 is highly anisotropic with negative thermal ex-pansion of the b-axis observed above 700 °C. This is the result of an anomalous expansion along the a-axis that is a consequence of weakening of the Tc-Tc bonds.
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Date
2017-01-01Publisher
ACSLicence
Copyright © 2017 American Chemical SocietyCitation
Inorganic Chemistry 2017, 56, 9219-9224. DOI: 10.1021/acs.inorgchem.7b01235Subjects
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