کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
215558 | 1426238 | 2014 | 9 صفحه PDF | دانلود رایگان |
• Methanolic solution of pyridoxine hydrochloride used as solvent.
• {N,N′-bis[(2-pyridinyl)methylene]-1, 2-benzenediamine]-bis(nitrato)}Cu(II) used as solute.
• Partial molar volumes and viscosity B-coefficients of the solute were determined.
• Weak 1:1 association between the complex and pyridoxine hydrochloride found.
• Non-covalent interactions and Cu(II) complex acts as a net structure maker in the ternary solutions.
Non-covalent interactions between of {N,N′-bis[(2-pyridinyl)methylene]-1, 2-benzenediamine]-bis(nitrato)}Cu(II) with pyridoxine hydrochloride in methanol were investigated by a combination of physico-chemical and spectrophotometric methods at T = (298.15, 308.15 and 318.15) K under ambient pressure. From measured density and viscosity data the apparent molar volume (ϕV ), the slope (SV∗), standard partial molar volume (ϕV0), standard transfer volume (ΔtϕV0), isobaric apparent molar expansibility (ϕE ), standard isobaric partial molar expansibility (ϕE0), the viscosity B-coefficient, its temperature derivative (∂B/∂T), solvation number (Sn) were calculated and discussed on the basis of specific or non-specific (solute + cosolute) and (solute + solvent) interactions. Thermodynamics of viscous flow were discussed on the basis of the transition state theory. Spectrophotometric results indicated 1:1 (solute + cosolute) interaction between the complex and pyridoxine hydrochloride.
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Journal: The Journal of Chemical Thermodynamics - Volume 75, August 2014, Pages 136–144