Characterization of Electronic Transition Energies and Trigonal Distortion of the (FeO6)9-Coordination Complex in the Al2O3:Fe3+System:  A Simple Method for Transition-Metal Ions in a Trigonal Ligand Field

2006 ◽  
Vol 110 (39) ◽  
pp. 11353-11358 ◽  
Author(s):  
Kuang Xiao-Yu ◽  
Lu Cheng
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Electronic Transition ◽  
Transition Metal Ions ◽  
Ligand Field ◽  
Simple Method ◽  
Transition Energies ◽  
System A ◽  
Electronic Transition Energies

The optical absorption spectra of certain transition metal ions in muscovite, lepidolite, and fuchsite

1968 ◽  
Vol 5 (1) ◽  
pp. 31-38 ◽  
Author(s):  
G. H. Faye
Keyword(s):  
Transition Metal ◽  
Optical Absorption ◽  
Metal Ions ◽  
Absorption Spectra ◽  
Transition Metal Ions ◽  
Ligand Field ◽  
Optical Absorption Spectra ◽  
Ligand Field Theory ◽  
Octahedral Sites ◽  
Sheet Silicate

The unpolarized optical absorption spectra of the sheet silicate minerals muscovite, lepidolite, and fuchsite have been examined. The spectra, interpreted on the basis of ligand field theory, indicate that all three minerals contain Fe3+ and possibly Ti3+ in octahedral sites. In addition, muscovite is shown to contain octahedrally coordinated Fe2+, lepidolite octahedral Fe2+ and Mn2+, and fuchsite octahedral Cr3+. No evidence was found for transition metals in tetrahedral sites.Some comments are made on the similarity of the spectra of certain of the transition metal ions in several classes of minerals. This leads to the speculation that the cations Fe3+, Mn2+, and Cr3+ may tend to 'mold' their immediate surroundings.

Growth and characterization of divalent transition metal ions doped zinc hydrogen phosphate single crystals

2018 ◽  
Author(s):  
Delma D’Souza ◽  
N. Jagannatha ◽  
K. P. Nagaraja ◽  
P. S. Rohith ◽  
K. V. Pradeepkumar
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Single Crystals ◽  
Transition Metal Ions ◽  
Hydrogen Phosphate
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