Infrared spectroscopic evidence for π-complex formation from ethylene chemisorbed on palladium and platinum

1976 ◽  
pp. 76-77 ◽  
Author(s):  
Janet D. Prentice ◽  
Aldona Lesiunas ◽  
Norman Sheppard
Keyword(s):  
Complex Formation ◽  
Spectroscopic Evidence ◽  
Π Complex ◽  
Infrared Spectroscopic

ChemInform Abstract: π-Complex Formation and Collapse in Electrophilic Halogenation of Aromatic Substrates.

ChemInform ◽  
1987 ◽  
Vol 18 (47) ◽  
Author(s):  
O. M. E. EL-DUSOUQUI ◽  
K. A. M. MAHMUD ◽  
Y. SULFAB
Keyword(s):  
Complex Formation ◽  
Aromatic Substrates ◽  
Π Complex

ÉTARD REACTION: III. NATURE OF THE COMPLEX

1960 ◽  
Vol 38 (11) ◽  
pp. 2136-2142 ◽  
Author(s):  
Owen H. Wheeler
Keyword(s):  
Magnetic Susceptibility ◽  
Reaction Mechanism ◽  
Chloride Complex ◽  
Initial Formation ◽  
Spectroscopic Evidence ◽  
Chromyl Chloride ◽  
Π Complex ◽  
Products Of Reaction

Magnetic susceptibility measurements have shown that the chromium atoms in the toluene–chromyl chloride complex are tetravalent. The structure of the complex and the reaction mechanism are discussed. Spectroscopic evidence has been found of the initial formation of a π-complex. The products of reaction of chromyl chloride and ethylbenzene, isopropylbenzene, tetralin, and indane have been determined.

Ethylene Hydroformylation with Carbon Dioxide Catalyzed by Ruthenium Supported on Titanate Nanotubes: Infrared Spectroscopic Evidence of Surface Species

2021 ◽  
Vol 6 (40) ◽  
pp. 10758-10766
Author(s):  
Alejandra Chavez‐Mulsa ◽  
Juan C. Fierro‐Gonzalez ◽  
Brent E. Handy ◽  
Iván Alonso Santos‐López ◽  
Sergio Aarón Jimenez‐Lam ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Titanate Nanotubes ◽  
Surface Species ◽  
Spectroscopic Evidence ◽  
Infrared Spectroscopic ◽  
Ethylene Hydroformylation

Proximity Effect in Arene Pi-Complex Formation

1966 ◽  
Vol 21 (9) ◽  
pp. 823-827 ◽  
Author(s):  
Minoru Tsutsui ◽  
Morris N. Levy
Keyword(s):  
Complex Formation ◽  
Proximity Effect ◽  
Grignard Reagent ◽  
Reaction System ◽  
Coupling Reaction ◽  
Reaction Products ◽  
Hydrogen Elimination ◽  
Trans Stilbene ◽  
Π Complex ◽  
Aryl Grignard Reagent

A proximity effect in arene π-complex formation from the reaction system of an aryl Grignard reagent and anhydrous chromic chloride was investigated. The yields of arene π-complexes and any accompanying reaction products were compared by the systematic variation of the aryl Grignard reagent employed. Phenyl Grignard gave the best yield of π-complex followed by the benzyl, mesityl and β-ethyl phenyl analogues. The styryl and phenylacetylenyl analogues did not form any π-complexes.The coupling reaction of benzyl groups gave a new π-complex, π-bibenzyl-π-toluene chromium, along with toluene, bibenzyl and trans-stilbene.Trans-stilbene was found without forming a trace amount of cis-stilbene. A mechanism for this stereospecific and α-hydrogen elimination coupling reaction is proposed.

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