The dissolution enthalpy of the reactans and the products was determined by solution calorimetry.The calorimetric solvent is 2mol·L -1 HCl solution.A thermochemistry cycle was designed to obtain the enthalpy of c...The dissolution enthalpy of the reactans and the products was determined by solution calorimetry.The calorimetric solvent is 2mol·L -1 HCl solution.A thermochemistry cycle was designed to obtain the enthalpy of coordination reaction,Δ rH m=-479.321kJ·mol -1 ,and the standardmolar enthalpy of formation of the new complex La(Tyr)(Gly) 3Cl 3·3H 2O(s) was calculated,Δ fH m[La(Tyr)(Gly) 3Cl 3·3H 2O,s298.2K]=-4695.266kJ·mol -1 .展开更多
Two reduced sequences of(s/s′)f (relative reduced partition function ratio) found in the present paper are LiSCN·B15C5>LiCCl3COO·B15C5 > LiClO4·B15C5 and LiClO4·4-mB15C5>LiClO4·B15C5...Two reduced sequences of(s/s′)f (relative reduced partition function ratio) found in the present paper are LiSCN·B15C5>LiCCl3COO·B15C5 > LiClO4·B15C5 and LiClO4·4-mB15C5>LiClO4·B15C5>LiClO4·Ph15C5,respectively.These solid lithium complexes with crown ethers were separated from tetrahydrofuran for the first sequence and from 3-methyl-1-butanol for the second one,respectively.Acording to the analysis of the data obtained,an independent character of the three factors(solvents,anion of lithium salts,and the sidegroup of 15C5 series),playing a part in contribution to(s/s′)f,have been brought to light preliminarily.展开更多
文摘The dissolution enthalpy of the reactans and the products was determined by solution calorimetry.The calorimetric solvent is 2mol·L -1 HCl solution.A thermochemistry cycle was designed to obtain the enthalpy of coordination reaction,Δ rH m=-479.321kJ·mol -1 ,and the standardmolar enthalpy of formation of the new complex La(Tyr)(Gly) 3Cl 3·3H 2O(s) was calculated,Δ fH m[La(Tyr)(Gly) 3Cl 3·3H 2O,s298.2K]=-4695.266kJ·mol -1 .
文摘Two reduced sequences of(s/s′)f (relative reduced partition function ratio) found in the present paper are LiSCN·B15C5>LiCCl3COO·B15C5 > LiClO4·B15C5 and LiClO4·4-mB15C5>LiClO4·B15C5>LiClO4·Ph15C5,respectively.These solid lithium complexes with crown ethers were separated from tetrahydrofuran for the first sequence and from 3-methyl-1-butanol for the second one,respectively.Acording to the analysis of the data obtained,an independent character of the three factors(solvents,anion of lithium salts,and the sidegroup of 15C5 series),playing a part in contribution to(s/s′)f,have been brought to light preliminarily.
