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Citation: Chen Rongti*, Gu Zongxin, Chen Xuemin. STUDY OF PROT0NATION AND COORDINATION OF LIGANDS WITH TITRATION CALORIMETRY H~+,Cu(Ⅱ)-N,N′-(p-RPh)_2en SYSTEM[J]. Acta Physico-Chimica Sinica, ;1989, 5(03): 348-352. doi: 10.3866/PKU.WHXB19890318 shu

STUDY OF PROT0NATION AND COORDINATION OF LIGANDS WITH TITRATION CALORIMETRY H~+,Cu(Ⅱ)-N,N′-(p-RPh)_2en SYSTEM

1.
Department of Chemistry; Nankai University; Tianjin

Received Date: 31 August 1987
Available Online: 15 June 1989

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.
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