Zobrazeno 1 - 10
of 31
pro vyhledávání: '"V. K. Matveev"'
Autor:
V. K. Matveev, A. V. Koroleva
Publikováno v:
Russian Journal of Physical Chemistry A. 94:1167-1172
Temperature dependences of the spectra of aqueous solutions of LiCl, KCl, RbCl, CsCl with concentrations of 3 M in the mid-IR range in the temperature range of 39 to 2°C are studied. Average rate $$\frac{{\Delta \nu }}{{\Delta T}}$$ of the temperatu
Autor:
V. K. Matveev, A. V. Koroleva
Publikováno v:
Moscow University Physics Bulletin. 73:388-393
In this work, the concentration dependences of IR spectra were studied for aqueous LiCl, NaCl, RbCl, and CsCl solutions within the range from 4 to 0.2 M and an aqueous KCl solution within the range from 3 to 0.2 M at a temperature of –3.5°C in the
Publikováno v:
Russian Journal of Physical Chemistry A. 92:488-495
The UV absorption spectrum of methacryloyl fluoride molecule in the gas phase is obtained in the wavenumber range of 32300–35900 cm−1. The resolved vibrational structure of this spectrum consists of 153 absorption bands. The assignment of all ban
Publikováno v:
Russian Journal of Physical Chemistry A. 92:310-314
The IR spectra of aqueous solutions of sodium chloride and rubidium chloride with the same concentration of 0.1 M upon freezing are studied in the middle IR region. The changes that occur in the absorption bands of the bending ν2, compound ν2 + νL
Publikováno v:
Russian Journal of Physical Chemistry A. 91:1056-1063
A correlation between the lifetimes of hydrogen bonds and the thermodynamic characteristics of their formation and breaking, and the experimental relaxation times of dielectric spectra and the energy characteristics of relaxation processes, is observ
Publikováno v:
Russian Journal of Physical Chemistry A. 90:1609-1613
The structural parameters of s-trans- and s-cis-isomers of a methacrolein molecule in the ground (S0) electronic state are determined by means of MP2 method with the cc-pVTZ basis set. Kinematic factor F(φ) is expanded in a Fourier series. The poten
Publikováno v:
Russian Journal of Physical Chemistry A. 89:1248-1253
The bands of the vibrational structure of the n-π* transition in the high-resolution UV absorption spectrum of methacrolein vapor were assigned. The 0–0 transitions of the s-trans- and s-cis-isomers were evaluated: ν00trans = 26484.3 cm−1, ν00
Publikováno v:
Journal of Structural Chemistry. 56:27-33
Structural parameters of trans- and cis-isomers of an acryloyl fluoride molecule in the ground (S0) and excited (S1) electronic states are determined. The F(φ) function is expanded into the Fourier series. The internal rotation potential functions (
Publikováno v:
Russian Journal of Physical Chemistry A. 87:789-793
B3LYP, MP2, CCSD(T), and MP4/MP2 in the 6-311G(d, p), 6-311++G(d, p), cc-pVTZ, aug-cc-pVTZ bases used to calculate the transition frequencies of torsional vibration of trans- and cis-isomers of acrolein in the ground electronic state (S 0) are analyz
Publikováno v:
Russian Journal of Physical Chemistry A. 86:600-605
The assignments of absorption bands of the vibrational structure of the UV spectrum are compared with the assignments of bands obtained by the CRDS method in a supersonic jet from the time of laser radiation damping for the trans isomer of acrolein i