The role of dielectric permittivity on the stoichiometry of the charge-transfer complexes and ion-pairs of iodine with triethylamine

✍ Scribed by Ram Sahai; Vinod Singh; R.K. Verma

• Book ID: 103066863
• Publisher: Elsevier Science
• Year: 1982
• Tongue: English
• Weight: 452 KB
• Volume: 27
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(82)80135-7

✦ Synopsis

The charge-transfer interaction between triethylamine (Et,N)and iodine has been studied in the solvents of different dielectric permittivity, using conductometric, refractometric and differential refractometric techniques. The Ki value increases with the increase in the dielectric constant of the solvent, when calculated through the electrical conductance method, while the reverse was found when calculated through refractometric and differential refractometric techniques.

The co-existence, in equilibrium, of intimate and solvent separated ion-pairs in a binary mixture ofdioxan-THF for Et,NI+, I;spcies has been observed. The equilibrium constant (K) and salvation number (n) for the equilibrium:

Et,NI+, I; +nTHF : Et,NI+//I;

have been calculated and it was found that a sinale THF molecule has managed to intercalate between the cation and the anion.