The Mechanism of Oxygenation Reactions Catalyzed by Rhodium(I) Complexes in Solution

1971 ◽  
Vol 49 (6) ◽  
pp. 975-976 ◽  
Author(s):  
B. R. James ◽  
E. Ochiai
Keyword(s):  
Infrared Spectroscopy ◽  
Metal Complexes ◽  
Molecular Oxygen ◽  
Direct Evidence ◽  
Hydrogen Abstraction ◽  
Rhodium Complex

The mechanism of oxygenation reactions catalyzed by a rhodium complex which forms a 1:1 molecular oxygen adduct has been elucidated by infrared spectroscopy. Hydrogen abstraction from the substrate by the coordinated oxygen is involved, and the data give the first direct evidence for hydroperoxide intermediates in such reactions of d8 metal complexes.

scholarly journals Metallkomplexe in Anorganischen Matrices, 5 [1] / Metal Complexes in Inorganic Matrices, 5 [1]

1991 ◽  
Vol 46 (6) ◽  
pp. 783-788 ◽  
Author(s):  
Christian Egger ◽  
Ulrich Schubert
Keyword(s):  
Acetic Acid ◽  
Metal Complexes ◽  
Phenylacetic Acid ◽  
Sol Gel ◽  
Rhodium Complex ◽  
Gel Processing ◽  
Inorganic Matrices

A heterogenized rhodium complex, prepared by sol-gel processing of Rh(CO)Cl[PPh2CH2CH2Si(OEt)3]2 and Si(OEt)4, is shown to catalyze the conversion of the silanes H4-nSiPh„ (n = 1 - 3) or (HMe2Si)2O to (poly)siloxanes by air or water. Using THF as a solvent, the silanoles Ph3SiOH or Ph2Si(OH)2 are obtained instead. The reaction of phenylacetic acid or acetic acid with HSiPh3 to give silyl esters is catalyzed by the same compound.

Synthesis, structural studies, kinetic stability, and oxidation catalysis of the late first row transition metal complexes of 4,10-dimethyl-1,4,7,10-tetraazabicyclo[6.5.2]pentadecane

2015 ◽  
Vol 44 (27) ◽  
pp. 12210-12224 ◽  
Author(s):  
Dallas L. Matz ◽  
Donald G. Jones ◽  
Kimberly D. Roewe ◽  
Michael-Joseph Gorbet ◽  
Zhan Zhang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Atom ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Hydrogen Abstraction ◽  
Kinetic Stability ◽  
Oxidation Catalysis ◽  
Atom Transfer ◽  
Structural Studies ◽  
Oxygen Atom Transfer

Fe/Mn complexes of ethylene cross-bridged homocyclen catalyze oxygen atom transfer and hydrogen abstraction.

The nature of the coordination bond in metal complexes of substituted pyridine derivatives. III. 4-Methylpyridine complexes of some divalent transition metal ions

1968 ◽  
Vol 46 (20) ◽  
pp. 3137-3141 ◽  
Author(s):  
D. G. Brewer ◽  
P. T. T. Wong ◽  
M. C. Sears
Keyword(s):  
Infrared Spectroscopy ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Ions ◽  
Coordination Bond ◽  
Pyridine Derivatives ◽  
Normal Coordinate ◽  
Substituted Pyridines ◽  
Solid Complexes ◽  
Nitrogen Bond

Previous papers in this series investigated the nature of the coordination bond in copper(II) and zinc(II) complexes of 4-substituted pyridines by infrared spectroscopy. In this paper, the investigation has been extended to complexes of 4-methylpyridine with cobalt(II), manganese(II), and nickel(II). The geometry of the solid complexes is assigned, and the force constants associated with the metal–nitrogen bond were calculated from a normal coordinate analysis. The validity of the previously introduced Rπ parameter in these systems is discussed.

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