%0 Journal Article %T Spectrophotometric and Electrochemical Study of the Complexation of Iodine with 1,10-Diaza-18-Crown-6 in Acetonitrile Solution %J Iranian Journal of Chemistry and Chemical Engineering %I Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR %Z 1021-9986 %A Semnani, Abolfazl %A Shareghi, Behzad %A Sovizi, Mohammad Reza %D 2000 %\ 11/01/2000 %V 19 %N 2 %P 67-71 %! Spectrophotometric and Electrochemical Study of the Complexation of Iodine with 1,10-Diaza-18-Crown-6 in Acetonitrile Solution %K DA18C6 iodine complex %K Spectrophotometry %K Formation constant %K Conductometry %K Biomperometry %R 10.30492/ijcce.2000.10005 %X The complexation reaction between iodine and 1,10-Diaza-18-Crown-6 (DA18C6) has been studied in acetonitrile by spectrophotometric, biamperometric and conductometric techniques. The results are indicative of the formation of [(CH3CH)nI+.I¯3] from iodine and acetonitrile, and the formation of DA18C6 I+. I¯ from DA18C6 and [(CH3CH)nI+.I¯3]. The formation constant of the latter reaction has been calculated from the absorbance-mole ratio data, using the nonlinear least square program "KINFIT". The IR spectra of acetonitrile-acetonitrile iodine complex and DA18C6-DA18C6 iodine complex arecompared and the effect of complexation on absorption bands are discussed. %U https://ijcce.ac.ir/article_10005_4f3815033cb6a7dcbdc5ab5c0fc83a78.pdf