Impact of cobalt ions on the phonon energy and ligand field parameters of some borate glasses

2020 ◽  
pp. 120535 ◽  
Author(s):  
A.A. El-Daly ◽  
M.A. Abdo ◽  
H.A. Bakr ◽  
M.S. Sadeq
Keyword(s):  
Phonon Energy ◽  
Ligand Field ◽  
Borate Glasses ◽  
Cobalt Ions ◽  
Ligand Field Parameters

The Coordination Chemistry of Phosphoryl Compounds Containing the — N(CH3)2 Group, Part VIII

1972 ◽  
Vol 27 (7) ◽  
pp. 759-763 ◽  
Author(s):  
M. W. G. De Bolster ◽  
W. L. Groeneveld
Keyword(s):  
Coordination Chemistry ◽  
General Formula ◽  
Ligand Field ◽  
Chemical Analyses ◽  
X Ray ◽  
Physical Measurements ◽  
Ligand Field Spectra ◽  
Chloride Adduct ◽  
Ligand Field Parameters ◽  
Group Part

A number of new solvates and adducts containing bisphenyldimethylaminophosphine oxide is reported. The solvates have the general formula M[(C6H5)2P(O)N(CH3)2]42+(anion-)2, in which M = Mg, Ca, Mn, Fe, Co, Ni, Cu, Zn and Cd, and the anions are ClO4- and BF4-. The adducts have the general formula M[(C6H5)2P(O)N(CH3)2]2Cl2, where M stands for the same series of metals.The compounds are characterized and identified by chemical analyses and physical measurements.Ligand-field and vibrational spectra have been investigated; values for the ligand-field parameters are reported. It is concluded that coordination takes place via the oxygen atom of the ligand.X-ray powder patterns were used in combination with ligand-field spectra to deduce the coordination around the metal ions.The interesting behaviour of the nickel (II) chloride adduct upon heating is discussed and it is shown that both a square pyramidal and a tetrahedral modification exists.

Ligand Field Parameters

1976 ◽  
Vol 15 (3-4) ◽  
pp. 189-199 ◽  
Author(s):  
Ivano Bertini ◽  
Dante Gatteschi ◽  
Andrea Scozzafava
Keyword(s):  
Ligand Field ◽  
Ligand Field Parameters

Ligand field parameters for europium(III) in gadolinium, yttrium, and letetium orthovanadates

1977 ◽  
Vol 51 (1) ◽  
pp. 160-164 ◽  
Author(s):  
G. Grenet ◽  
M. Kibler ◽  
C. Linarès ◽  
A. Louat ◽  
F. Gaume
Keyword(s):  
Ligand Field ◽  
Ligand Field Parameters
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