Crystal structure and thermochemistry of a novel coordination compound 2-pyrazine carboxylate sodium
作者： B. Li , Y. H. Zhang , Y. X. Kong , Y. Y. Di , J. M. Dou
DOI: 10.1007/S10973-014-3901-5
关键词:
摘要: 2-Pyrazine carboxylate sodium Na2(PCA)2(s) was synthesized. X-ray crystallography applied to characterize its crystal structure. Chemical and elemental analyses were used determine composition purity. A precise automatic adiabatic calorimeter measure heat capacities in the temperature range from 78 400 K. polynomial equation of experimental molar as a function obtained. The smoothed thermodynamic functions compound calculated. standard enthalpies dissolution for reactants products synthesis reaction selected solvent measured by an isoperibol solution-reaction calorimeter. enthalpy change determined be (1.70 ± 0.82) kJ mol−1, formation complex derived −(1,108.70 ± 2.51) kJ mol−1. In addition, reliability designed thermochemical cycle verified UV–Vis spectra.
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