Infrared spectra, laser Raman spectra, and force constants of the metal-hexahalo species R2MIVX6, RMVX6[R=tetraethylammonium or cesium; MIV=titanium, zirconium, or hafnium; MV=niobium or tantalum; chlorine or bromine], and tungsten hexachloride

1969 ◽  
Vol 8 (7) ◽  
pp. 1395-1401 ◽  
Author(s):  
W. Van Bronswyk ◽  
Robin Jon Hawes Clark ◽  
L. Maresca
1969 ◽  
Vol 23 (6) ◽  
pp. 610-615 ◽  
Author(s):  
Stanley K. Freeman ◽  
Dana W. Mayo

Laser-Raman spectra of 12 acyclic terpenoids has been recorded. Assignments were made for stretching mode vibrations of carbon-carbon double bonds by comparison with infrared spectra. The results of intensity and depolarization studies are discussed.


1980 ◽  
Vol 34 (3) ◽  
pp. 327-331 ◽  
Author(s):  
Ken Ohwada

Laser Raman spectra of uranyl tetrachloride complexes [K2UO2Cl4, Rb2UO2Cl4, Cs2UO2Cl4, (NH4)2UO2Cl4] have been measured in the region from 3500 to 10 cm−1. Vibrational assignments as well as normal coordinate analyses have been carried out with the assumption that all the complexes contain discrete (UO2Cl4)2− ions belonging to a point group D4h. To understand the nature of the uranyl bonds in the complexes, approximate π-bonding energies of such bonds have been estimated from the U—O stretching force constants. The reliability of the values obtained are discussed in detail on the basis of Mulliken's magic formula.


1972 ◽  
Vol 50 (10) ◽  
pp. 1596-1600 ◽  
Author(s):  
J. Hubert ◽  
P. C. Kong ◽  
F. D. Rochon ◽  
T. Theophanides

Zeise's salt, anhydrous and monohydrate, has been prepared by a new method similar to the original method used by Zeise. The infrared and laser Raman spectra of the anhydrous Zeise's salt together with the infrared spectra of the deutero and bromo analogs, are reported and discussed. The vibrational spectra are interpreted in terms of a cyclopropane-like ring structure, obtained by the insertion of the platinum atom into the double bond.


1970 ◽  
Vol 48 (20) ◽  
pp. 3117-3123 ◽  
Author(s):  
A. M. Qureshl ◽  
F. Aubke

The infrared spectra from 4000–250 cm−1 and the laser Raman spectra of NOAsF6, NO2AsF6, N2F3AsF6, F2NOAsF6, NOSbF6, NO2SbF6, N2F3Sb2F11, and F2NOSb2F11 are recorded. Eight of the nine fundamentals expected for the N2F3+ cation can be observed and are tentatively assigned. The vibrational spectra of the MF5 adducts are in agreement with an ionic formulation; however, the mutual exclusion rule for infrared and Raman active vibrations appears to be relaxed and one of the fundamentals v5 [F2g] is split into a doublet in almost all cases.


1982 ◽  
Vol 60 (17) ◽  
pp. 2216-2221 ◽  
Author(s):  
Michel Manfait ◽  
Alain J. P. Alix ◽  
Jacqueline Delaunay-Zeches ◽  
Théophile Theophanides

The laser Raman spectra of the hydroxo-bridged platinum(II) complexes, di-μ-hydroxo-bis(diammine) platinum(II)-nitrate [(NH3)2Pt(OH)2Pt(NH3)2](NO3)2, and isotopic derivatives involving the atoms H/D and 16O/18O are recorded in the solid state in the range 0–4000 cm−1. The infrared spectra of the complexes are recorded in KBr pellets in the range 200–4000 cm−1. Assignments of the different lines for the nitrate ion, the ammonia molecules, the hydroxo groups, and the square planar skeleton vibrations of the complex and its isotopic analogs are given.


1983 ◽  
Vol 122 (1) ◽  
pp. 31-47 ◽  
Author(s):  
Mohammed Mathlouthi ◽  
Anne Marie Seuvre ◽  
Jack L. Koenig

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