Spectroscopic study of [Me(NH3)6]X2 compounds. I‐Raman study of phase transitions in [Ni(NH3)6](ClO4)2 and [Ni(ND3)6](ClO4)2
J.A. JanikT. SargaJ.M. JanikG. PytaszJ. Sokotowski
Abstract
Abstract 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 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 ions. Two bands which were not resolved from the others at the room temperature study 1 were now evidenced at low temperatures.
Metrics
Citation History
Topics
Related Documents
Lattice Dynamics of [Ni(NH3)6] (ClO4)2, [Ni(NH3)6] (BF4)2, and [Ni(NH3)6] (PF6)2
Spectroscopy study of [Ni(NH3)6]X2 compounds. III reorientational correlation times of NH3 and ClO4 groups in [Ni(NH3)6](ClO4)2
Lattice Dynamics of [Ni(NH3)6] (CLO4)2, [Ni(NH3)6] (BF4)2, and [M(NH3)6](PF6)2
Group theoretical classification of vibrations in the (Ni(NH3)6)(ClO4)2, (Ni(NH3)6)(BF4)2and (Ni(NH3)6)(PF6)2crystals
Isotype Strukturen einiger Hexaamminmetall(II)‐halogenide von 3d‐Metallen: [V(NH3)6]I2, [Cr(NH3)6]I2, [Mn(NH3)6]Cl2, [Fe(NH3)6]Cl2, [Fe(NH3)6]Br2, [Co(NH3)6]Br2 und [Ni(NH3)6]Cl2
R. ESSMANNGuido KreinerAnke NiemannD. RechenbachAxel SchmiedingThomas SichlaUwe ZachwiejaH. Jacobs