Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Michael T.H. Liu"'
Publikováno v:
The Journal of Physical Chemistry A. 108:1312-1318
The analysis of the time-resolved UV-vis absorption spectra of the 2-vinylpyridinium ylide of phenylchlorocarbene, measured by laser-flash photolysis, indicates the existence of two rotamers of this species. The absorption spectrum, rise time, and de
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 161:43-50
The photolysis of m -phenylene-bis(chlorodiazirine) in the presence of 2-vinylpyridine (VP) yields the m -phenylene-bis(indolizine) by a mechanism involving two consecutive photoreactions. Photolysis of a first diazirine ring generates a carbene whic
Publikováno v:
Canadian Journal of Chemistry. 77:540-549
The reactions of the singlet methylene (1a) and dimethylcarbene (1b), with their diazirine precursors, diazirine (2a), and dimethyldiazirine (2b), have been studied theoretically using ab initio and density functional theory. The reaction has no acti
Publikováno v:
Canadian Journal of Chemistry. 76:1162-1173
An ultraviolet photoelectron (PE) spectrometer apparatus that utilizes a tuneable 50 W CW CO2 laser as a directed heat source was used to study the vacuum pyrolysis of diazoacetophenone (1a) and its p-methyl, p-methoxy, p-chloro, and p-nitro analogue
Autor:
Gennady V. Shustov, Michael T.H. Liu
Publikováno v:
Canadian Journal of Chemistry. 76:851-861
Rearrangements of 2-adamantene 3, adamantylidene 4, and 4-protoadamantylidene 5 have been studied theoretically using high level ab initio computations. Adamantene 3 and adamantylidene 4 have singlet ground states. The conversion of 3 into 4 via 1,2
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 116:9-19
Irradiation of 2-adamantane-2,3′-[3 H ]-diazirine ( 1 ) in isooctane at room temperature gives two primary photoproducts, 2-diazoadamantane and 2-adamantylidene ( Ad: ), with quantum yields of about 0.5 each. The fluorescence quantum yield of 1 is
Autor:
Masaaki Mishima, Shinjiro Kobayashi, Takatsugu Matsumoto, Michael T.H. Liu, Gennady V. Shustov
Publikováno v:
ChemInform. 29
N-Protonated diazomethanes have been generated successfully via gas phase protonation of the corresponding diazirines.
Autor:
Shinjiro Kobayashi, Gennady V. Shustov, Takatsugu Matsumoto, Masaaki Mishima, Michael T.H. Liu
Publikováno v:
Chemical Communications. :1655-1656
N-Protonated diazomethanes have been generated successfully via gas phase protonation of the corresponding diazirines.
Publikováno v:
Tetrahedron Letters. 27:4395-4398
Non-concerted addition of arylchlorocarbenes to diethyl maleate, accompanied by isomerization of maleate to fumarate, is consistent with an intermediate carbene—alkene dipolar adduct.
Publikováno v:
ChemInform. 18
Non-concerted addition of arylchlorocarbenes to diethyl maleate, accompanied by isomerization of maleate to fumarate, is consistent with an intermediate carbene—alkene dipolar adduct.