Spectroscopic study of [Me(NH 3 ) 6 ]X 2  compounds. I‐Raman study of phase transitions in [Ni(NH 3 ) 6 ](ClO 4 ) 2  and [Ni(ND 3 ) 6 ](ClO 4 ) 2 | Zendy

Janik J. A. | Zendy; Sarga T. | Zendy; Janik J. M. | Zendy; Pytasz G. | Zendy; Sokotowski J. | Zendy

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Spectroscopic study of [Me(NH 3 ) 6 ]X 2 compounds. I‐Raman study of phase transitions in [Ni(NH 3 ) 6 ](ClO 4 ) 2 and [Ni(ND 3 ) 6 ](ClO 4 ) 2

Author(s) -

Janik J. A.,

Sarga T.,

Janik J. M.,

Pytasz G.,

Sokotowski J.

Publication year - 1977

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.1250060306

Subject(s) - raman spectroscopy , analytical chemistry (journal) , crystallite , ion , chemistry , phase transition , phase (matter) , inorganic compound , spectral line , crystallography , condensed matter physics , physics , optics , chromatography , astronomy , organic chemistry

Temperature dependence of Raman spectra was measured for polycrystalline [Ni(NH 3 ) 6 ](ClO 4 ) 2 and [Ni(ND 3 ) 6 ](ClO 4 ) 2 . Spectroscopic evidence for the phase transition at 173 K was obtained. The phase transition is evident in the splitting of some bands corresponding to the internal ClO − 4 ion vibrations and in charactreistic intensity dependences of the bands. Some bands also showed a characteristic broadening with increasing temperature, which we interpret as being connected with stochastic reorientations of NH 3 groups and ClO − 4 ions. Two bands which were not resolved from the others at the room temperature study 1 were now evidenced at low temperatures.

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