Polarized Crystal Spectra of Ni(NH3)4(NCS)2 and Ni(NH3)4(NO2)2
1964; American Institute of Physics; Volume: 40; Issue: 3 Linguagem: Inglês
10.1063/1.1725207
ISSN1520-9032
AutoresCurtis R. Hare, C. J. Ballhausen,
Tópico(s)Organic and Molecular Conductors Research
ResumoThe polarized crystal spectra of isostructural trans-Ni(NH3)4(NCS)2 and trans-Ni(NH3)4(NO2)2 have been determined at room temperature. In accordance with the spectrochemical series, the tetragonal splitting of the octahedral levels is virtually zero for the isothiocyanate and large for the nitrite. A vibronic intensity mechanism is invoked since the intensity is distributed in the polarization directions in the centro-symmetric crystals.
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