Abstract
According to the data of IR spectroscopy and quantum chemical calculations N-(2-phenylethyl) trifluoromethanesulfonamide exists in an inert solvent CCl4 as an equilibrium mixture of the monomer and chain associates; in contrast, N-(5-iodocyclopentenyl)-1,1,1-trifluoromethanesulfonamide under the same conditions is prone to the formation of cyclic self-associates. The behavior of N,N′-(cyclohexenediyl)-bis(1,1,1-trifluoromethane sulfonamide) in the same medium is far more complicated: apart from the monomer with intramolecular hydrogen bonds (HB), it forms only cyclic self-associates with eight-membered and eleven-membered rings.
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