ChemInform Abstract: LOWER OXIDATION STATES OF SELENIUM PART 1, SPECTROPHOTOMETRIC STUDY OF THE SELENIUM-SELENIUM TETRACHLORIDE SYSTEM IN A MOLTEN NACL-ALCL3 EUTECTIC MIXTURE AT 150 DEGREES

1975 ◽  
Vol 6 (46) ◽  
pp. no-no
Author(s):  
R. FEHRMANN ◽  
N. J. BJERRUM ◽  
H. A. ANDREASEN
Keyword(s):  
Eutectic Mixture ◽  
Spectrophotometric Study ◽  
Oxidation States ◽  
Lower Oxidation

The prediction of metal-to-metal bonding in transition metal binary and related compounds

1964 ◽  
Vol 17 (11) ◽  
pp. 1191 ◽  
Author(s):  
JC Sheldon
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Valence State ◽  
Oxidation States ◽  
Metal Bonding ◽  
Binary Oxides ◽  
Lower Oxidation ◽  
D Orbitals ◽  
Related Compounds

The evidence for, and the factors determining, the formation of metal-to-metal (m-m) bonds in transition metal oxides, sulphides, halides, and related complexes are discussed. It is proposed that when metals of high preferred valence state are constrained to low formal oxidation states, m-m bonds will form to allow the metal to exercise a higher valency. It is assumed that (n-l)d orbitals are used for such bonds and predictions of the feasibility of m-m bonding are possible by the comparison of the size of such orbitals with the expected inter-metal distances in polymeric metal oxides and halides. It is concluded that binary oxides and halides (excepting fluorides) of the lower oxidation states of Zr, Hf, Nb, Ta, Mo, W, and Re and of a few neighbouring elements will display m-m bonds.

Lower Oxidation States of f Elements: III. Properties of Low-Valence Lanthanide and Actinide Compounds in the Solid State and in Various Solvents

2005 ◽  
Vol 47 (5) ◽  
pp. 423-439 ◽  
Author(s):  
N. B. Mikheev ◽  
S. A. Kulyukhin ◽  
A. N. Kamenskaya ◽  
N. A. Konovalova ◽  
I. A. Rumer
Keyword(s):  
Solid State ◽  
Oxidation States ◽  
Lower Oxidation

Oxides of rare-earth elements in lower oxidation states

1986 ◽  
Vol 35 (9) ◽  
pp. 1778-1780
Author(s):  
K. I. Slovetskaya ◽  
Yu. S. Khodakov ◽  
A. M. Rubinshtein ◽  
Kh. M. Minachev
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Oxidation States ◽  
Lower Oxidation
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