Journal ArticleDOI
Orbital valency force field: a good approximation to general valence force field for XY4 (Td) and XY3 (D3h) type molecules
Reads0
Chats0
TLDR
In this paper, analytical expressions for determining the symmetry force constants of XY 4 (T d ) and XY 3 (d 3h ) typs molecules in the orbital valency force field model were derived.About:
This article is published in Journal of Molecular Structure.The article was published on 1972-08-01. It has received 8 citations till now. The article focuses on the topics: Valency.read more
Citations
More filters
Journal ArticleDOI
Vibrational spectra of transition metal chalcogen compounds
K.H. Schmidt,Achim Müller +1 more
Journal ArticleDOI
Vibrational spectra and pseudo-exact force constants of [Ni(NH3)6]2+, [Zn(NH3)4]2+, and [Zn(CN)4]2− with 58Ni/62Ni, 64Zn/68Zn and H/D isotopic substitution
TL;DR: In this paper, it was shown that reasonable force constants for the skeletons of hexammine and tetrammine metal complexes can be calculated from Raman and infrared data of the isotopically substituted ions using the point mass model, if the isotope shifts can be measured accurately.
Journal ArticleDOI
The Degenerate Vibrations of BCl3, BBr3 and BI3 with Application of Keating Coordinates
TL;DR: In this article, the experimental works of vibrational spectroscopy and normal coordinate analyses for BCl3, BBr3 and BI3 are reviewed extensively and the usefulness of Keating coordinates versus valence coordinates as basis of force field approximations is discussed.
Journal ArticleDOI
Orbital Valence, Urey-Bradley and Approximate General Valence Force Fields and Vibrational Mean Amplitudes of Some Spherical Top M(CH3)4 Type Molecular Model (M=C, Si, Ge, Sn and Pb)
TL;DR: In this article, the intramolecular force fields of tetramethylcarbon, tetramerethylsilane, tetrammethylgermanium and tetramethyltin have been examined using OVFF, UBFF and GVFf potential functions under the approximation of "point-mass" for methyl group.
Journal ArticleDOI
Boron Trifluoride: Application of the Keating Bendings to the Degenerate Vibrations
TL;DR: In this article, the harmonic force field of the E' species of BF3 is studied and the Keating force field (KFF) is defined in analogy with the familiar VFF and CFF.
References
More filters
Journal ArticleDOI
The Normal Vibrations of Polyatomic Molecules as Treated by Urey‐Bradley Field
TL;DR: In this article, a method of setting up the vibrational secular equation for polyatomic molecules of ''Urey-Bradley field'' type is described, and 102 fundamental frequencies calculated using 28 distinct force constants are in satisfactory agreement with the observed, with a mean deviation of 1.4 percent.
Journal ArticleDOI
Normal coordinate treatment of XY4-type molecules and ions with Td symmetry: Part I. Force constants of a modified valence force field and of the Urey-Bradley force field
Achim Müller,Bernt Krebs +1 more
TL;DR: In this paper, the Urey-Bradley-Shimanouchi force constants for all XY4-type molecules and ions with Td symmetry for which reliable frequency data are known (except hydrides XH4) were calculated.
Journal ArticleDOI
Vibrational spectrum and force field of osmium tetroxide.
Journal ArticleDOI
Molecular force fields. Part III.—The vibration frequencies of some planar XY3 molecules
D. F. Heath,J. W. Linnett +1 more
Journal ArticleDOI
Molecular force fields of octahedral XF6 molecules
TL;DR: In this article, the orbital valency force field (OVFF) is applied to the fifteen hexafluorides whose vibrational frequencies are known, and the best-fit force constants are calculated.