Potassium and cesium thiocyanate complexes with diphenyloxa-21-crown-7: Synthesis and vibration spectra. Selective properties of dipnehyloxa-21-crown-7 |
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| Authors: | I S Ivanova A V Dorokhov E N Pyatova E N Galkina V V Yakshin A Yu Tsivadze |
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| Institution: | (1) Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991 Moscow, Russia;(2) All-Russia Research Institute of Chemical Technology, Moscow, Russia;(3) Institute of Physical Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991 Moscow, Russia |
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| Abstract: | Novel K and Cs complexes with diphenyloxa-21-crown-7 (2,3,5,6-dibenzo-1,4,7,10,13,16,19-heptaoxacyclo-heneicosadiene-2,5; DPO21C7) are synthesized and isolated in a solid state, and their IR spectra (4000–400 cm–1) are studied. Only four ether O atoms of crown ether are involved in coordination. Conformation of a macrocycle in the complexes depends on the cation size. The potentiometric selectivity of diphenyloxa-21-crown-7 toward Cs+ ions was found to be the greatest.Translated from Koordinatsionnaya Khimiya, Vol. 31, No. 3, 2005, pp. 163–167.Original Russian Text Copyright © 2005 by Ivanova, Dorokhov, Pyatova, Galkina, Yakshin, Tsivadze.This revised version was published online in April 2005 with a corrected cover date.This revised version was published online in April 2005 with a corrected cover date. |
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