Conductance studies on complex formation of nano Cu(NO3)2.2.5H2O with 4,6-diacetylresorcinol in mixed solvents

被引:7
作者
Sanad, Sameh G. [1 ]
Shebl, Magdy [1 ]
机构
[1] Ain Shams Univ, Fac Educ, Dept Chem, Cairo, Egypt
关键词
Formation thermodynamic parameters; Formation constants; Gibbs free energy; Enthalpy; Entropy; Nano copper nitrate; 4,6-Diacetylresorcinol; BINUCLEAR METAL-COMPLEXES; TERNARY COPPER(II) COMPLEXES; DNA-BINDING; ANTIMICROBIAL ACTIVITY; STRUCTURAL DIVERSITY; AQUEOUS-SOLUTION; SPECTROSCOPIC CHARACTERIZATION; STABILITY-CONSTANTS; LIGAND COMPLEXES; CARBOXYLIC-ACIDS;
D O I
10.1016/j.molliq.2019.111602
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The different complexation thermodynamic parameters for example, formation constants (K-f), free energies of formation (Delta G(f)) enthalpies of formation (Delta H-f) and entropies of formation (Delta S-f) for nano copper nitrate hemi pentahydrate (Cu(NO3)(2).2.5H(2)O) with 4,6-diacetylresorcinol as a ligand in pure DMF and in mixed solvents of DMF and water are calculated at different temperatures, 293.15, 303.15, 313.15 and 323.15 K by using conductance measurements. By drawing the relation between molar conductance and ratio of metal to ligand, the figures indicate the formation of two types of complexes with M:L ratios 1:2 and 1:1 stoichiometric complexes. (C) 2019 Elsevier B.V. All rights reserved.
引用
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页数:9
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