Molecular Complexes of Crown Ethers, Part 6: Complexes of Cryptand (2,2,2) and Kryptofix 5 with Some Acceptors |
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| Authors: | Salman R Salman Jabor K Jabor |
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| Institution: | (1) Chemistry Department, College of Science, University of Qatar, P.O. Box 2713, Doha, Qatar;(2) Chemistry Department, Faculty of Science, University of, Yarmouk, Irbid, Jordan |
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| Abstract: | The UV-Visible spectra of Cryptand (2,2,2) and Kryptofix 5 as donors, and TCNE (tetracyanoethylene), DDQ (2,3-dichloro-5,6- dicyano-1,4 benzoquinone) and PA (picric acid) as acceptors were studied. Charge transfer (CT) spectra 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 transfer from the donor to the acceptor. This revealed itself in very high conductivity values for the CT solutions in comparison to that of the donor or the acceptor solutions. The infrared and proton NMR spectra of the complexes indicated a strong interaction between the donor and the acceptor. |
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| Keywords: | UV-visible spectra charge transfer complex electron transfer TCNE DDQ |
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