Thermochemistry of the ternary complex Eu(Et2dtc)3(phen)
作者： Sanping Chen , Gang Xie , Guang Fan , Shengli Gao , Qizhen Shi
DOI: 10.1016/J.JCT.2004.09.012
关键词:
摘要: Abstract A ternary solid complex Eu(Et 2 dtc) 3 (phen) has been obtained the from reaction of sodium diethyldithiocarbamate (NaEt dtc), 1,10-phenanthroline and hydrated europium chloride in absolute ethanol. The title was described by chemical elemental analyses, TG-GTG IR spectrum. enthalpy change liquid-phase formation complex, Δ r H m θ (l), determined as−(13.481 ± 0.0314) kJ · mol −1 at T = 298.15 K a RD-496 III heat conduction microcalorimeter. solid-phase (s), calculated as (152.317 ± 0.542) on basis designed thermochemical cycle other auxiliary thermodynamic qualities. thermodynamics investigated changing temperature reaction. Fundamental parameters, apparent rate constant ( k ), activation energy E pre-exponential order n ≠ entropy S free G ) were combination kinetic equations with data thermokinetic experiments. constant-volume combustion c U , −(17410.63 ± 8.95) RBC-Π rotating-bomb calorimeter K. Its standard combustion, formation, f to be −(17429.84 ± 8.95) −(1231.76 ± 9.92) respectively.
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