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Crystal structure and solid–solid phase transition of the complex (C11H18NO)2CuCl4(s)

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Abstract

The complex (C11H18NO)2CuCl4(s) was synthesized. Chemical analysis, elemental analysis, and X-ray crystallography were used to characterize the structure and composition of the complex. Low-temperature heat-capacities of the compound were measured by an adiabatic calorimeter in the temperature range from 77 to 400 K. A phase transition of the compound took place in the region of 297–368 K. Experimental molar heat-capacities were fitted to two polynomial equations of heat-capacities as a function of the reduced temperature by least square method. The peak temperature, molar enthalpy, and entropy of phase transition of the compound were calculated to be T trs = 354.214 ± 0.298 K, Δtrs H m = 76.327 ± 0.328 kJ mol−1, and Δtrs S m = 51.340 ± 0.164 J K−1 mol−1.

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Acknowledgements

This work was financially supported by the National Natural Science Foundations of China under the contract NSFC No. 20673050 and 20973089.

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong Province, People’s Republic of China

    W. Y. Dan, Y. Y. Di, Y. X. Kong, Q. Wang, W. W. Yang & D. Q. Wang

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  1. W. Y. Dan
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  2. Y. Y. Di
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  3. Y. X. Kong
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  4. Q. Wang
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  5. W. W. Yang
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  6. D. Q. Wang
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Correspondence to Y. Y. Di.

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Dan, W.Y., Di, Y.Y., Kong, Y.X. et al. Crystal structure and solid–solid phase transition of the complex (C11H18NO)2CuCl4(s). J Therm Anal Calorim 102, 291–296 (2010). https://doi.org/10.1007/s10973-009-0663-6

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  • DOI: https://doi.org/10.1007/s10973-009-0663-6

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