Crystal structure and dielectric property of supramolecular macrocyclic[（NDPA）.（18-crown-6）]2＋·（DMA）＋·3ClO4-assemblies-中国期刊网

摘要 Onenovelorganic-inorganichybridsupramolecularassemblies|（NDPA）（18-crown-6）]2+（DMA）+·3ClO4-（1）,hasbeensuccessfullyconstructedthroughtheprominentstrategiesofcrystalengineering（NDPA=N,N-dimethyI-1,4-phenylenediamine,DMA=dimethylamine）,andcharacterizedbyIR,powderXRDandsinglecrystalX-raydiffraction.Inthestructure,thesupramolecularorganiccationsandinorganicClO4-anionsarearrangedalternatelyandlinkedbyN-O…Hhydrogenbonds.ItisworthytonotethattheClO4-arelinkedtoformone-dimensionalinorganicchainthroughstrongNH…Ohydrogenbondsalongb-axis.Thereisnodistinctdielectricanomalyinthetemperaturedependentandfrequency-dependentdielectricconstantcurves,suggestingthatnophasetransitionexistswithinthemeasuredtemperaturerange（120-420K）.Therelativedisplacementofcationsandanions,theturnedpolarizationofmolecularelectricmomentandmacrocyclicmoleculerotatorarethemainfactorstodeterminethetrendofdielectricconstant.

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Crystal structure and dielectric property of supramolecular macrocyclic[（NDPA）.（18-crown-6）]2＋·（DMA）＋·3ClO4-assemblies

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Crystal structure and dielectric property of supramolecular macrocyclic[（NDPA）.（18-crown-6）]2＋·（DMA）＋·3ClO4-assemblies

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