Specificity in the interaction between some chiral Co(III) complex ions and DNA in aqueous solution

1972 ◽  
Vol 68 (0) ◽  
pp. 1213 ◽  
Author(s):  
F. Ascoli ◽  
M. Branca ◽  
C. Mancini ◽  
B. Pispisa
Keyword(s):  
Aqueous Solution ◽  
Complex Ions

Specificity in the interaction between poly(L-glutamate) and iron (III) complex ions in aqueous solution

Biopolymers ◽  
1976 ◽  
Vol 15 (11) ◽  
pp. 2219-2226 ◽  
Author(s):  
M. Branca ◽  
M. E. Marini ◽  
B. Pispisa
Keyword(s):  
Aqueous Solution ◽  
Complex Ions

scholarly journals III. The measurement of Ionic velocities in aqueous solution, and the existence of complex ions

1902 ◽  
Vol 198 (300-311) ◽  
pp. 105-145
Keyword(s):  
Aqueous Solution ◽  
Transport Number ◽  
Complex Ions

As early as 1853 Hittorf (‘Pogg. Ann.,' vol. 89, 181, 1853), discussing the results of his experiments, emphasised the fact, that a more detailed study of the movements of the ions during electrolysis would result in an increased knowledge of the constitution of salts in solution. He himself, in a research extending over a number of years, ( ibid ., 89, 177, 1853; 98, 1, 1856; 106, 337 and 513, 1859,) determined the ratio of the velocities of the two ions for a large number of salts, and the series of measurements has been further extended by later investigators. (For the original literature on transport number determination, see Bein, 'Zeitschrift fur Phys. Chemie,' vol. 27, 1 (1898)).

scholarly journals The Thermodynamics of Copper (II) and Nickel (II)- Diamine Complex Formation in Aqueous Solution

2021 ◽  
Author(s):  
◽  
Harry Kipton James Powell
Keyword(s):  
Aqueous Solution ◽  
Complex Formation ◽  
Thermodynamic Functions ◽  
Electrode System ◽  
Glass Electrode ◽  
Complex Ions ◽  
Degree Of Hydration ◽  
Enthalpy Changes ◽  
Delta G ◽  
The Stability

<p>This work describes the accurate measurement of the thermodynamic functions Delta G degree and Delta H degree for the step-wise coordination equilibria between each of the ions H+, Ni2+, Cu2+, and, a series of C1-substituted 1,2-diaminoethanes in aqueous solution. The study Involved. (a) The construction of a sensitive constant temperature environment calorimeter for measuring the enthalpy changes in the complex-formation reactions, (b) The rigorous calibration of an electrode system, incorporating a glass electrode, for the direct potentiometric measurement of equilibrium hydrogen ion concentrations in the solutions containing complex ions. The thermodynamic functions Delta G degree and Delta H degree led to accurate Delta S degree values for the step-wise complex-formation reactions. The thesis considers the contribution of the entropy of ligation to the stability of complex ions. The molar entropies of the complex ions have been calculated and their values considered with respect to the coordination number and the possible structure, degree of hydration and steric properties of the ions.</p>

scholarly journals The measurement of ionic velocities in aqueous solution, and the existence of complex ions

1901 ◽  
Vol 68 (442-450) ◽  
pp. 358-360
Keyword(s):  
Aqueous Solution ◽  
Present Method ◽  
Gelatin Solution ◽  
Complex Ions

The method of measuring ionic volocities described by Masson has been extended in such a manner that, by the present method, the use of gelatin solution and of coloured indicators is not necessary. An aqueous solution of the salt to be measured is enclosed between two partitions of gelatin which contain the indicator ions in solution, the apparatus being always so arranged that the heavier solution lies underneath the lighter.

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