19807-41-1Relevant articles and documents
A carbene-carbene complex equilibrium
Moss, Robert A.,Wang, Lei,Odorisio, Christina M.,Krogh-Jespersen, Karsten
, p. 10677 - 10679 (2010)
Phenylchlorocarbene, generated by laser flash photolysis of phenylchlorodiazirine, formed highly stable φ-type complexes with 1,3,5-trimethoxybenzene in pentane. The carbene and carbene complexes were in equilibrium. We measured the equilibrium constant (
The thermodynamics of the formation of pyridinium ylides from carbienes
LaVilla, Joseph A.,Goodman, Joshua L.
, p. 6287 - 6290 (1990)
The enthalphies of reaction for complexion of methyl- and phenylchlorocarbene with substituted pyridines are determined by photoacoustic calorimetry. The enthalpies are similar for the two carbenes and can be related to the pKa's of the pyridin
Singlet Halophenylcarbenes as Strong Hydrogen-Bond Acceptors
Richter, Geneviève,Mendez-Vega, Enrique,Sander, Wolfram
, p. 3524 - 3532 (2016/07/06)
Chlorophenylcarbene and fluorophenylcarbene were generated in water-doped argon matrices at cryogenic temperatures by photolysis of the corresponding matrix-isolated diazirines. When diffusion of H2O in solid argon was induced by annealing of the matrices at temperatures above 20 K, hydrogen-bonded complexes between the carbenes and water were formed. UV photolysis of these complexes resulted in the formation of benzaldehyde and hydrogen halides HX. The same products were obtained after photolysis of the diazirines in amorphous water ice. Obviously, the primary insertion product of the carbenes into H-OH is unstable under these conditions, and benzaldehyde is formed via secondary photolysis. The stable primary photochemical insertion product of chlorophenylcarbene into an O-H bond was observed in the reaction of the carbene with methanol.
Hammett analysis of a family of carbene-carbene complex equilibria
Wang, Lei,Moss, Robert A.,Thompson, Jack,Krogh-Jespersen, Karsten
supporting information; experimental part, p. 1198 - 1201 (2011/04/27)
p-X-substituted phenylchlorocarbenes (X = NO2, CF3, Cl, H, Me, and MeO) form π-type complexes with trimethoxybenzene in pentane. The carbenes and complexes are in equilibrium, and logarithms of the measured equilibrium constants are well correlated by Hammett σp constants with ρ = 2.48. The carbene complexes are characterized by UV-vis spectroscopy, and computational analysis is afforded by DFT calculations.(Figure Presented)