学科分类
/ 1
1 个结果
  • 简介:Thecomplexofneodymiumchloridelowerhydratewithdiethylammoniumdiethyldithiocarbamate(D-DDC)wassynthesizedconvenientlyinabsolutealcoholanddryN2atmosphere.ThetitlecomplexwasidentifiedasEt2NH2[Nd(S2CNEt2)4]bychemicalandelementalanalysesandthebondingcharacteristicsofwhichwascharacterizedbyIR.TheenthalpiesofsolutionofneodymiumchloridehydrateandD-DDCinabsolutealcoholat298.15Kandtheenthalpieschangeofliquid-phasereactionofformationforEt2NH2[Nd(S2CNEt2)4]atdifferenttemperaturesweredeterminedbymicrocalorimetry.Onthebasisofexperimentalandcalculatedresults,threethermodynamicparameters(theactivationenthalpy,theactivationentropyandtheactivationfreeenergy),therateconstantandthreekineticparameters(theapparentactivationenergy,thepre-exponentialconstantandthereactionorder)ofliquid-phasereactionofformationwereobtained.Theenthalpychangeofthesolid-phasetitlereactionat298.15Kwascalculatedbyathermochemicalcycle.

  • 标签: 荧光材料 发光性能 稀土 热化学 配合物