Sr. Salman et Jk. Jabor, Molecular complexes of crown ethers, part 6: Complexes of Cryptand (2,2,2)and Kryptofix 5 with some acceptors, J INCL P MA, 33(1), 1999, pp. 17-26
Citations number
21
Categorie Soggetti
Chemistry
Journal title
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
The UV-Visible spectra of Cryptand (2,2,2) and Kryptofix 5 as donors, and T
CNE (tetracyanoethylene), DDQ (2,3-dichloro-5,6- dicyano-1,4 benzoquinone)
and PA (picric acid) as accepters were studied. Charge transfer (CT) spectr
a were obtained for these systems. It was found that potassium halides have
little effect on the spectra. The major process was due to an electron tra
nsfer from the donor to the acceptor. This revealed itself in very high con
ductivity values for the CT solutions in comparison to that of the donor or
the acceptor solutions. The infrared and proton NMR spectra of the complex
es indicated a strong interaction between the donor and the acceptor.