Abstract

AbstractThe dielectric and spectral properties of [NH(CH3)3]CoCl3 × 2H2O (abbreviately TrMA–CoCl3) crystals were investigated in the temperature region of 293–345 K. The anomalous behaviour of the investigated parameters at T1 = 327 K was related to early unknown phase transition. The considerable change of the absorption spectra at T1 is explained by the distorsion and the corresponding change of symmetry of the polyhedron around Co2+ ion. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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