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Paper Details

Charge Transfer Complexes of Recently Synthesized Mixed AzaThia Crown Ether and Pyridine Based Mixed AzaThia Crown Ether with Iodine and DDQ in Chloroform Solution

Naser Samadia*and Mahsa Rahimi Sadrb

Journal Title:Journal of Chemical, Biological and physical sciences

The interaction of two recently synthesized mixed azathia crown ether 1,7- dithia10-aza-12-crown-4, and pyridine based mixed azathia crown ether with iodine and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) have been examined in chloroform. Thermodynamics of these reactions are studied spectrophotometrically, and the formation of both 1:1 and 2:1 ([L]/[I2]) and [L]/[DDQ] complexes with iodine and DDQ was established. The complex formation constants Kf were determined by computer fitting of the absorbance-mol ratios data. Formation of the CT complexes of macrocycles with iodine and DDQ was confirmed by NMR and IR spectroscopies.