ChemInform Abstract: Organic Syntheses Catalyzed by Superacidic Metal Oxides: Sulfated Zirconia and Related Compounds

ChemInform ◽  
2010 ◽  
Vol 41 (9) ◽  
Author(s):  
Kazushi Arata
Keyword(s):  
Metal Oxides ◽  
Sulfated Zirconia ◽  
Organic Syntheses ◽  
Related Compounds

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.

Organo-transition metal oxides and sulphides: A tetranuclear η-cyclopentadienylmolybdenum oxide and related compounds

1977 ◽  
Vol 131 (3) ◽  
pp. C40-C42 ◽  
Author(s):  
Jean-Claude Daran ◽  
Keith Prout ◽  
George J.S. Adam ◽  
Malcolm L.H. Green ◽  
Jean Sala-Pala
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Related Compounds

scholarly journals Coated sulfated zirconia/SAPO-34 for the direct conversion of CO2 to light olefins

2020 ◽  
Vol 10 (5) ◽  
pp. 1507-1517 ◽  
Author(s):  
Adrian Ramirez ◽  
Abhishek Dutta Chowdhury ◽  
Mustafa Caglayan ◽  
Alberto Rodriguez-Gomez ◽  
Nimer Wehbe ◽  
...  
Keyword(s):  
Carbon Cycle ◽  
Metal Oxides ◽  
Sulfated Zirconia ◽  
Fossil Fuel ◽  
Direct Conversion ◽  
Light Olefins ◽  
Bifunctional Catalysts

The conversion of CO2 to light olefins via bifunctional catalysts (i.e. metal oxides/zeolites) is a promising approach to tackle CO2 emissions and, at the same time, reduce fossil-fuel dependence by closing the carbon cycle.

Effect of Substitution of [Pd(PPh3)4] by Related Compounds as Catalysts in Reactions of Organic Syntheses

2006 ◽  
Vol 109 (3-4) ◽  
pp. 171-174 ◽  
Author(s):  
Roberto S. Barbiéri ◽  
C. R. Bellato ◽  
A. K. C. Dias ◽  
A. C. Massabni
Keyword(s):  
Organic Syntheses ◽  
Related Compounds

scholarly journals Materials space of solid-state electrolytes: unraveling chemical composition–structure–ionic conductivity relationships in garnet-type metal oxides using cheminformatics virtual screening approaches

2017 ◽  
Vol 19 (31) ◽  
pp. 20904-20918 ◽  
Author(s):  
Natalia Kireeva ◽  
Vladislav S. Pervov
Keyword(s):  
Chemical Composition ◽  
Solid State ◽  
Ionic Conductivity ◽  
Virtual Screening ◽  
Metal Oxides ◽  
Solid State Electrolytes ◽  
Composition Structure ◽  
Related Compounds ◽  
Screening Approaches

Several candidate garnet-related compounds have been recommended for synthesis as potential materials for solid-state electrolytes.

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