Thermochemical studies of two copper(II) complexes with N-benzoyl-Nâ²,Nâ²-dialkylurea derivatives
作者:M Ribeiro da Silva
DOI:10.1016/s0040-6031(01)00626-8
日期:2001.10.24
crystalline bis(N-benzoyl-N′,N′-diethylureato)copper(II), Cu(BETU)2, and bis(N-benzoyl-N′,N′-diisobutylureato)copper(II), Cu(BIBU)2, were measured, at T=298.15 K, by solution–reaction isoperibol calorimetry, respectively, as −(833.7±9.7) and −(1050.6±12.1) kJ mol−1. The standard molar enthalpy of sublimation, at T=298.15 K, of Cu(BETU)2 was determined by a Knudsen effusion technique as (180±37) kJ mol−1. These
摘要 结晶双(N-苯甲酰基-N',N'-二乙基脲)铜(II)、Cu(BETU)2和双(N-苯甲酰基-N')的标准(p0=0.1 MPa)摩尔生成焓, N'-二异丁基脲基)铜(II)、Cu(BIBU)2 在 T=298.15 K 下,通过溶液反应等周量热法分别测量为 -(833.7±9.7) 和 -(1050.6±12.1) kJ mol -1。Cu(BETU)2 在 T=298.15 K 时的标准摩尔升华焓通过 Knudsen 渗出技术确定为 (180±37) kJ mol-1。这些值用于推导气相中 Cu(BETU)2 的标准摩尔形成焓,并评估配合物相对于配体与氢的平均金属-配体解离焓。