Abstract

The method described in Part I has been further developed and applied to a number of complexes. Experimental techniques are discussed and the value of the conductivity peak is expressed quantatively in terms of a molar conductivity coefficient σ M → (1/αM)(σ p - σ 0)/σ 0 where σ p is the measured peak conductance, and σ 0 the linearly interpolated background conductance at the concentration ratio of the peak, ie that conductance which would be obtained in the absence of any interaction, from merely mixing the donor and acceptor solutions. M stands for the molar concentration of the titrant at the stoichiometry of the complex, ie at the conductance peak. α is the dissociation constant of the complex. σ M values are listed for 11 complexes, together with their stoichiometries. A number of solvent interactions, liable to attect the conductivity titrations, are discussed. Preliminary experiments indicate that some correlation exists between σ M values and esr results.

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