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用具有恒温环境的反应热量计 ,分别测定L Val(s)、Cu(OAc) 2 H2 O(s)和trans Cu(L Val) 2(s)、HOAc(l)、H2 O(l)在 4mol LHCl溶液中的溶解焓 ,根据设计的一个热化学循环 ,可计算出该固相配位反应的反应焓ΔrHm (2 98 1 5K) =2 0 .60 1kJ mol,并计算出配合物trans Cu(L Val) 2 (s)的标准生成焓 ,推荐其值为 :ΔfHm (2 98.1 5k) =-1 1 5 1 .3 1kJ mol.
L Val (s), Cu (OAc) 2 H 2 O (s) and trans Cu (L Val) 2 (s), HOAc (l) and H 2 O (l) were measured with a reaction calorimeter with a constant temperature 4mol LHCl solution, the enthalpy of reaction ΔrHm (2 98 1 5K) = 2.060kJ mol can be calculated according to a thermochemical cycle designed and the complex trans Cu (L Val) 2 (s) standard formation enthalpy, the recommended value is: ΔfHm (2 98.1 5k) = -1 1 5 1 .3 1kJ mol.