Low Temperature Heat Capacity Study of Co2(bdc)2(dabco)

Temperature dependence of molar heat capacity C p of Co 2 (C 8 H 4 O 4 ) 2 ·C 6 H 12 N 2 was first measured by vacuum adiabatic calorimetry in the temperature range of 5.4–303 K. Two anomalies at 11 K and 80 K have been identified. The obtained C p values were compared with those for Zn 2 (C 8 H 4 O...

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Bibliographic Details
Published in:International journal of thermophysics 2022, Vol.43 (1), Article 5
Main Authors: Pishchur, Denis P., Kompankov, Nikolay B., Kozlova, Svetlana G.
Format: Article
Language:English
Subjects:
Anomalies
Classical Mechanics
Cobalt
Condensed Matter Physics
Electron spin
Geophysics
Industrial Chemistry/Chemical Engineering
Lattice vibration
Low temperature
Physical Chemistry
Physics
Physics and Astronomy
Specific heat
Temperature dependence
Thermodynamics
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Summary:Temperature dependence of molar heat capacity C p of Co 2 (C 8 H 4 O 4 ) 2 ·C 6 H 12 N 2 was first measured by vacuum adiabatic calorimetry in the temperature range of 5.4–303 K. Two anomalies at 11 K and 80 K have been identified. The obtained C p values were compared with those for Zn 2 (C 8 H 4 O 4 ) 2 ·C 6 H 12 N 2 and Ni 2 (C 8 H 4 O 4 ) 2 ·C 6 H 12 N 2 . Spin–phonon interaction between lattice vibrations of Co 2 (C 8 H 4 O 4 ) 2 . C 6 H 12 N 2 and electron spins of Co 2+ was revealed.
ISSN:0195-928X
1572-9567
DOI:10.1007/s10765-021-02935-5