Characterization of the Oxidation States of Supported Gold Species by IR Spectroscopy of Adsorbed CO

2007 ◽  
Vol 79 (6) ◽  
pp. 795-806 ◽  
Author(s):  
M. Mihaylov ◽  
H. Knözinger ◽  
K. Hadjiivanov ◽  
B. C. Gates
Keyword(s):  
Ir Spectroscopy ◽  
Oxidation States ◽  
Adsorbed Co ◽  
Supported Gold

Characterization of the Oxidation States of Supported Gold Species by IR Spectroscopy of Adsorbed CO.

ChemInform ◽  
2007 ◽  
Vol 38 (36) ◽  
Author(s):  
Mihail Mihaylov ◽  
Helmut Knoezinger ◽  
Konstantin Hadjiivanov ◽  
Bruce C. Gates
Keyword(s):  
Ir Spectroscopy ◽  
Oxidation States ◽  
Adsorbed Co ◽  
Supported Gold

Catalytic Fluorination of Boron Compounds at a Bismuth Redox Platform

2019 ◽  
Author(s):  
Oriol Planas ◽  
Feng Wang ◽  
Markus Leutzsch ◽  
Josep Cornella
Keyword(s):  
Transition Metal ◽  
Main Group ◽  
Group Element ◽  
Oxidation States ◽  
Boron Compounds ◽  
Main Text ◽  
Main Group Element ◽  
Rational Ligand Design ◽  
Supplementary Material

The ability of bismuth to maneuver between different oxidation states in a catalytic redox cycle, mimicking the canonical organometallic steps associated to a transition metal, is an elusive and unprecedented approach in the field of homogeneous catalysis. Herein we present a catalytic protocol based on bismuth, a benign and sustainable main-group element, capable of performing every organometallic step in the context of oxidative fluorination of boron compounds; a territory reserved to transition metals. A rational ligand design featuring hypervalent coordination together with a mechanistic understanding of the fundamental steps, permitted a catalytic fluorination protocol based on a Bi(III)/Bi(V) redox couple, which represents a unique example where a main-group element is capable of outperforming its transition metal counterparts.<br>A main text and supplementary material have been attached as pdf files containing all the methodology, techniques and characterization of the compounds reported.<br>

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