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Spectral Studies of Isostructural Organic Metals (BEDT‐TTF) 3 (HSO 4 ) 2 and [Ni(dddt) 2 ] 3 (HSO 4 ) 2
Author(s) -
Świetlik R.,
Kushch N. D.,
Kushch L. A.,
Yagubskii E. B.
Publication year - 1994
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221810226
Subject(s) - isostructural , spectral line , absorption spectroscopy , infrared spectroscopy , crystallography , chemistry , absorption (acoustics) , atmospheric temperature range , materials science , analytical chemistry (journal) , crystal structure , optics , organic chemistry , physics , astronomy , meteorology , composite material
The polarized reflectance spectra of (BEDT‐TTF) 3 (HSO 4 ) 2 and [Ni(dddt) 2 ] 3 (HSO 4 ) 2 crystals are measured in the IR region (660 to 5200 cm −1 ) at room temperature. Moreover, the powder absorption spectra in the frequency range 400 to 40000 cm −1 are reported. Differences between charge transfer bands of both compounds are found. In [Ni(dddt) 2 ] 3 (HSO 4 ) 2 the strong coupling of electrons with vibrations of C = C ring bonds is observed. The phase transition in (BEDT‐TTF) 3 (HSO 4 ) 2 at the temperature T = 130 K influences the IR powder absorption spectra, especially within the range of C = C vibrations.