Abstract
Temperature dependence of molar heat capacity Cp of Co2(C8H4O4)2·C6H12N2 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 Cp values were compared with those for Zn2(C8H4O4)2·C6H12N2 and Ni2(C8H4O4)2·C6H12N2. Spin–phonon interaction between lattice vibrations of Co2(C8H4O4)2.C6H12N2 and electron spins of Co2+ was revealed.
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Acknowledgements
The authors thank D.G. Samsonenko for providing samples for research. The research was supported by the Russian Foundation for Basic Research, No. 20-03-00089 and the Ministry of Science and Higher Education of the Russian Federation, No. 121031700313-8.
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DPP and NSC carried out heat capacity measurements and edited the article. SGK analyzed all the data and wrote the original manuscript.
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Pishchur, D.P., Kompankov, N.B. & Kozlova, S.G. Low Temperature Heat Capacity Study of Co2(bdc)2(dabco). Int J Thermophys 43, 5 (2022). https://doi.org/10.1007/s10765-021-02935-5
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DOI: https://doi.org/10.1007/s10765-021-02935-5