物理化学学报 >> 1989, Vol. 5 >> Issue (03): 348-352.doi: 10.3866/PKU.WHXB19890318

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N,N'-(对位取代苯基)乙二胺的质子化及其与Cu(Ⅱ)配位的滴定量热测定

陈荣悌; 古宗信; 陈学民   

  1. 南开大学化学系
  • 收稿日期:1987-08-31 修回日期:1988-03-11 发布日期:1989-06-15
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STUDY OF PROT0NATION AND COORDINATION OF LIGANDS WITH TITRATION CALORIMETRY H~+,Cu(Ⅱ)-N,N′-(p-RPh)_2en SYSTEM

Chen Rongti*; Gu Zongxin; Chen Xuemin   

  1. Department of Chemistry; Nankai University; Tianjin
  • Received:1987-08-31 Revised:1988-03-11 Published:1989-06-15
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Abstract:

The apparent thermodynamic functions of the protonation and coordination of N,N′-(para-substituted phenol) ethylenediamine with Cu (Ⅱ) has been determined at 25.0±0.1 ℃ and I=0.1 mol.dm~(-3) (NaClO_4) in 90% (V/V) ethanol by the constant temperature environment-continuous titration calorimeter which had been constructed in our laboratory.
It has been found that the heat of protonation (H_(L1)) is linearly correlated with the Hammett constants and the formation of H~+ bridge occurs in ~H+ -N, N′-(p-RPh)_2en (1:1) systems.