145. Far-infrared spectra of some square-planar complexes [PtX2L2](X = Cl or Br). The influence of L upon the platinum–halogen stretching frequency and its relation to the trans-effect

1964 ◽  
Vol 0 (0) ◽  
pp. 734-739 ◽  
Author(s):  
D. M. Adams ◽  
J. Chatt ◽  
J. Gerratt ◽  
A. D. Westland
Keyword(s):  
Infrared Spectra ◽  
Far Infrared ◽  
Trans Effect ◽  
Square Planar ◽  
Square Planar Complexes ◽  
Far Infrared Spectra

Isotopic Studies of the Metal–Ligand Bond. Part III. The Far Infrared Spectra of Some Tetragonal Diamine Complexes of Cobalt(II) and Nickel(II): Studies of the Metal–Nitrogen Bond, as a Function of Metal Ion and of Spin State

1973 ◽  
Vol 51 (10) ◽  
pp. 1567-1581 ◽  
Author(s):  
A. B. P. Lever ◽  
Elvio Mantovani
Keyword(s):  
Infrared Spectra ◽  
Metal Ion ◽  
Far Infrared ◽  
Geometric Factors ◽  
Square Planar ◽  
Isotopic Studies ◽  
First Time ◽  
Far Infrared Spectra ◽  
Metal Ligand ◽  
Nitrogen Bond

The far infrared spectra of 35 complexes of the formula M(diamine)2X2 are reported where M = Co(II) and Ni(II), X = Cl−, Br−, I−, NO3−, SCN−, ClO4−, and AgI2− and the diamine is ethylenediamine or its N,N-symmetric or antisymmetrically substituted dimethyl or diethyl derivative. Isotopic substitution studies with 62Ni and with 2H are carried out with eleven characteristic complexes and assignments for the metal–nitrogen modes in both octahedral and square planar complexes so deduced. In most cases the appropriate number of metal–ligand modes, based on symmetry considerations, are observed. The variations in observed M—N frequencies are discussed in terms of the electronic and geometric factors previously utilized for the corresponding copper(II) complexes. In complexes containing the asymmetric ligands, stretching vibrations arising from the two types of metal–nitrogen bond can be separately identified. Isotopic studies of pairs of complexes containing the same ligand and metal ion but with the latter in alternate spin states are reported here for the first time. All of the cobalt(II) complexes and several of the nickel(II) complexes are reported here for the first time.

Far-infrared spectra of polycrystallineBa2YCu3O9−δ

1987 ◽  
Vol 36 (1) ◽  
pp. 846-849 ◽  
Author(s):  
G. A. Thomas ◽  
H. K. Ng ◽  
A. J. Millis ◽  
R. N. Bhatt ◽  
R. J. Cava ◽  
...  
Keyword(s):  
Infrared Spectra ◽  
Far Infrared ◽  
Far Infrared Spectra

scholarly journals Far-infrared spectra of alkali germanate glasses and correlation with electrical conductivity

1996 ◽  
Vol 54 (14) ◽  
pp. 9775-9783 ◽  
Author(s):  
E. I. Kamitsos ◽  
Y. D. Yiannopoulos ◽  
H. Jain ◽  
W. C. Huang
Keyword(s):  
Electrical Conductivity ◽  
Infrared Spectra ◽  
Far Infrared ◽  
Far Infrared Spectra ◽  
Germanate Glasses

Far-Infrared Spectra of Iron-Doped MgO

1968 ◽  
Vol 168 (2) ◽  
pp. 337-340 ◽  
Author(s):  
J. Y. Wong
Keyword(s):  
Infrared Spectra ◽  
Far Infrared ◽  
Iron Doped ◽  
Far Infrared Spectra
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