THE VIBRATIONAL SPECTRA OF ORGANOMETALLIC COMPOUNDS (Ⅱ) FT-INFRARED, LASER RAMAN SPECTRA AND NORMAL COORDINATE CALCULATION FOR 1,1'-DIMETHYLFERROCENE

1988 ◽  
Vol 4 (06) ◽  
pp. 578-586
Author(s):  
Liu Juzheng ◽  
◽  
Feng Yan ◽  
Jiang Shimei ◽  
Zhao Wenyun ◽  
...  
Keyword(s):  
Raman Spectra ◽  
Vibrational Spectra ◽  
Organometallic Compounds ◽  
Infrared Laser ◽  
Normal Coordinate ◽  
Laser Raman ◽  
Laser Raman Spectra ◽  
Normal Coordinate Calculation

The Infrared and Raman Spectra of Dimethyliodoarsine

1972 ◽  
Vol 50 (16) ◽  
pp. 2691-2696 ◽  
Author(s):  
H. F. Shurvell ◽  
M. R. Gold ◽  
A. R. Norris
Keyword(s):  
Raman Spectra ◽  
Normal Modes ◽  
Infrared And Raman Spectra ◽  
Normal Coordinate ◽  
Laser Raman ◽  
Laser Raman Spectra ◽  
Modes Of Vibration ◽  
Normal Coordinate Calculation

The infrared and laser–Raman spectra of liquid dimethyliodoarsine, (CH3)2AsI, have been recorded. Assignments of the observed frequencies have been made to the 24 normal modes of vibration of the molecule. A normal coordinate calculation has been carried out in support of the assignment.

Vibrational spectra of η5-cyclopentadienyldicarbonyl(thiocarbonyl)-manganese(I) and η5-cyclopentadienylcarbonyl(dithiocarbonyl)-manganese(I)

1976 ◽  
Vol 54 (1) ◽  
pp. 110-117 ◽  
Author(s):  
G. G. Barna ◽  
I. S. Butler ◽  
K. R. Plowman
Keyword(s):  
Solid State ◽  
Raman Spectra ◽  
Vapor Phase ◽  
Vibrational Spectra ◽  
State Data ◽  
Laser Raman ◽  
Change Of State ◽  
Laser Raman Spectra ◽  
Local Symmetries ◽  
Phase Solution

The ir and laser Raman spectra of η5-C5H5Mn(CO)2(CS) and η5-C5H5Mn(CO)(CS)2 have been investigated. In the case of the monothiocarbonyl complex, vapor phase, solution, and solid-state measurements were made, while for the dithiocarbonyl, only solid-state data were obtained. The vibrational spectra of both complexes have been assigned satisfactorily in terms of the C5v and Cs local symmetries of the η5-C5H5—Mn and Mn(CO)2(CS) (or Mn(CO)(CS)2) moieties, respectively. The effect of change of state on the spectra of the monothiocarbonyl complex is discussed.

Laser Raman Spectra and Normal Coordinate Analysis of Some Uranyl Tetrachloride Complexes

1980 ◽  
Vol 34 (3) ◽  
pp. 327-331 ◽  
Author(s):  
Ken Ohwada
Keyword(s):  
Raman Spectra ◽  
Point Group ◽  
Normal Coordinate Analysis ◽  
Force Constants ◽  
Normal Coordinate ◽  
Magic Formula ◽  
Vibrational Assignments ◽  
Laser Raman ◽  
Laser Raman Spectra ◽  
Group D

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.

Vibrational spectra of halopentacarbonylmanganese(I) derivatives

1969 ◽  
Vol 47 (22) ◽  
pp. 4117-4128 ◽  
Author(s):  
I. S. Butler ◽  
H. K. Spendjian
Keyword(s):  
Solid State ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Low Frequency ◽  
Laser Raman ◽  
Laser Raman Spectra

The solid-state infrared (i.r.) and laser Raman spectra of the halopentacarbonylmanganese(I) derivatives, Mn(CO)5X (X = Cl, Br,and I), have been recorded in the C—O stretching and the low frequency (700–33 cm−1) regions. The i.r. overtone and combination spectra recorded in the regions 2800–2250 and 1350–700 cm−1 have been used to help in the assignment of some of the low frequency fundamentals. The solid-state i.r. and laser Raman spectra of the dimeric halotetracarbonylmanganese(I) derivatives, [Mn(CO)4X]2 (X = Br and I), have been recorded in the C—O stretching and the low frequency regions for comparative purposes and shown to be consistent with the expected D2h symmetry of the molecules.

Zeise's Salt, K[Pt(C2H4)Cl3], Anhydrous and Monohydrate and the Platinum–Olefin Interaction

1972 ◽  
Vol 50 (10) ◽  
pp. 1596-1600 ◽  
Author(s):  
J. Hubert ◽  
P. C. Kong ◽  
F. D. Rochon ◽  
T. Theophanides
Keyword(s):  
Double Bond ◽  
Raman Spectra ◽  
Infrared Spectra ◽  
Vibrational Spectra ◽  
Ring Structure ◽  
Original Method ◽  
Platinum Atom ◽  
New Method ◽  
Laser Raman ◽  
Laser Raman Spectra

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.

Vibrational spectra of some perfluoro-arsenates and antimonates with nitrogen heterocations

1970 ◽  
Vol 48 (20) ◽  
pp. 3117-3123 ◽  
Author(s):  
A. M. Qureshl ◽  
F. Aubke
Keyword(s):  
Raman Spectra ◽  
Infrared Spectra ◽  
Vibrational Spectra ◽  
Mutual Exclusion ◽  
Laser Raman ◽  
Laser Raman Spectra ◽  
Almost All

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.

Matrix Infrared and Laser Raman Spectra, Molecular Structures and Normal Coordinate Analyses of Germanium Difluoride, Monomer GeF2, and Dimer (GeF2)2

1974 ◽  
Vol 52 (1) ◽  
pp. 95-99 ◽  
Author(s):  
H. Huber ◽  
E. P. Kündig ◽  
G. A. Ozin ◽  
A. Vander Voet
Keyword(s):  
Force Field ◽  
Raman Spectra ◽  
Normal Coordinate Analysis ◽  
Molecular Structures ◽  
Planar Structure ◽  
Normal Coordinate ◽  
Warm Up ◽  
Laser Raman ◽  
Laser Raman Spectra

Matrix infrared and laser Raman spectra are reported for GeF2 and (GeF2)2 in both N2 and Ar matrices. Raman depolarization measurements for the monomer in N2 matrices identify ν1 at 653 cm−1. Warm-up experiments identify infrared and Raman lines at 665, 478 cm−1 and 669, 465, and 424 cm−1 respectively, with the first stage of the polymerization of GeF2 monomer and are assigned to GeF stretching modes of the dimer (GeF2)2, having a centrosymmetric C2h, non-planar structure, containing a double fluorine bridge similar to the structure proposed for (SeO2)2. A normal coordinate analysis is performed on the dimer using a force field transferred from the monomer. The results provide additional evidence for the correctness of the vibrational and stereochemical assignments for the dimer.

Vibrational spectra of substituted toluenes – 4-amino-3-bromotoluene and 5-amino-2-bromotoluene

1984 ◽  
Vol 62 (11) ◽  
pp. 2238-2244 ◽  
Author(s):  
N. Syam Sundar
Keyword(s):  
Raman Spectra ◽  
Infrared Absorption ◽  
Vibrational Spectra ◽  
Vibrational Analysis ◽  
Laser Raman ◽  
Laser Raman Spectra ◽  
Substituted Toluenes

The infrared absorption and laser Raman spectra of 4-amino-3-bromotoluene and 5-amino-2-bromotoluene have been recorded. The vibrational analysis is presented assuming Cs symmetry for the molecules.

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