Crystal Spectra
نویسندگان
چکیده
منابع مشابه
Lattice Vibration Spectra. LXXV. IR Single Crystal Reflection Spectra of Sr(C103)2
Polarized infrared reflection spectra of Sr(C103)2 single-crystal plates are recorded and analysed for the frequencies of the transversal and longitudinal optical zone-centre phonon modes and other oscillator parameters by Kramers-Kronig analyses and both the classical 3 parameter (dielectric sum-function) and the 4 parameter (factorized form) oscillator-fit methods. The frequencies computed ar...
متن کاملCrystal Structure and Infrared Spectra of Anhydrous (Adeninato )methylmercury(II)*
The title compound, C6H 7HgN5, belongs to the orthorhombic space group Pbcn, a == 14.658(8), b == 8.407(5), c == 13.006(9) A, D eal == == 2.898 g cm-3, Z == 8 molecules per cell. The structure was refined on 1132 unique nonzero reflections to R == 0.026. The crystal contains the same type of 1 : 1 monomeric molecule as the monohydrate, in which the CH3Hg group is bonded to the N(9) position of ...
متن کاملInfrared and polarized Raman spectra of dixanthinium tetrachlorozincate single crystal
Single crystal dixanthinium tetrachlorozincate has been grown from dilute chloridric acid. Polarized Raman spectrum of the single crystalline sample, FT-Raman and FT-IR spectra of the polycrystalline samples have been examined and the bands assigned to the appropriate modes predicted by a factor group analysis for the space group Pmn21. The crystal structure has been confirmed by powder XRD mea...
متن کاملTemperature dependent polarized Raman spectra of nonaaqualanthanoid (Pr) single crystal.
Polarized Raman spectral changes with respect to temperature were investigated for Pr(BrO3)3.9H2O single crystals. FTIR spectra of hydrated and deuterated analogues were also recorded and analysed. Temperature dependent Raman spectral variation have been explained with the help of the thermograms recorded for the crystal. Factor group analysis could propose the appearance of BrO3 ions at sites ...
متن کاملMultimode vibronic spectra of the Holstein molecular crystal model.
Vibronic spectra of the Holstein model for molecular crystals are investigated using the dynamical mean field theory with the additional aid of the multi-mode Brownian oscillator model. The effects of temperature, intermolecular transfer integral, damping constant and quadratic coupling on the vibronic spectra are examined, and spectra in the presence of two phonon modes are studied in detail. ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1973
ISSN: 0028-0836,1476-4687
DOI: 10.1038/242141c0