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.
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Translated from Koordinatsionnaya Khimiya, Vol. 31, No. 3, 2005, pp. 163–167.
Original Russian Text Copyright © 2005 by Ivanova, Dorokhov, Pyatova, Galkina, Yakshin, Tsivadze.
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Ivanova, I.S., Dorokhov, A.V., Pyatova, E.N. et al. Potassium and cesium thiocyanate complexes with diphenyloxa-21-crown-7: Synthesis and vibration spectra. Selective properties of dipnehyloxa-21-crown-7. Russ J Coord Chem 31, 151–155 (2005). https://doi.org/10.1007/s11173-005-0066-6
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DOI: https://doi.org/10.1007/s11173-005-0066-6