Zobrazeno 81 - 90
of 99
pro vyhledávání: '"35"'
Cryogenic CO2 Formation on Oxidized Gold Clusters Synthesized via Reactive Layer Assisted Deposition
Publikováno v:
Journal of the American Chemical Society. 127:14592-14593
Gas-phase Au atoms deposited onto a multilayer film of molecular oxygen produce atomic oxygen bound to gold clusters. After removal of molecular O2, temperature programmed desorption and molecular beam techniques show that the atomic oxygen readily r
High-Activity, Single-Site Catalysts for the Alternating Copolymerization of CO2 and Propylene Oxide
Publikováno v:
Journal of the American Chemical Society. 124:14284-14285
Despite recent advances regarding catalysts for CO2/epoxide copolymerization, the development of high-activity catalysts for alternating polymerization of CO2 and commodity epoxides, such as propylene oxide, remains a challenge. A new class of unsymm
Publikováno v:
Journal of the American Chemical Society. 122:182-183
Methyl-coenzyme M reductase (MCR) catalyzes the chemical step of methane formation by methanogenic organisms. The reaction involves the two-electron reduction of CH{sub 3}S-CoM by N-7-mercaptoheptanoylthreoinine phosphate (CoB-SH). The authors have e
Autor:
James F. Hoover, Jeffrey M. Stryker
Publikováno v:
Journal of the American Chemical Society. 112:464-465
La reaction de (COD)Pt(CH 2 I) 2 (COD=cyclooctadiene-1,5) avec un exces de triphenylphosphine donne le complexe (triphenylphosphine) (I) (bis-triphenylphosphoniomethyl) du platine. Il reagit avec l'acetonitrile puis avec le butyne-3ol pour donner si
Publikováno v:
Journal of the American Chemical Society. 107:1930-1934
We report the results of picosecond and slower time scale transient absorption and emission measurements on a series of ruthenium(II) and ruthenium(III) octaethylporphyrins (Ru(OEP)(L1)(L2». The ruthenium(II) porphyrins are of three types. First are
Publikováno v:
Journal of the American Chemical Society. 104:2539-2543
Described is the surface coordination chemistry of cyclohexane, 1,3- and 1,4-cyclohexadiene, and cyclohexene on the low Miller index planes and a stepped surface of nickel and on the platinum (111) and stepped 6(111)X(111) surfaces as established by
Autor:
Curtis E. Johnson, Richard Eisenberg
Publikováno v:
Journal of the American Chemical Society. 107:3148-3160
The oxidative addition of H2 to the iridium(I) chelates IrX(CO) (dppe) (X(-) = Cl(-), Br(-), I(-), Cn(-), H(-), PPh3; dppe = 1, 2-bis-(diphenylphosphino)ethane) proceeds with > 99% steroselectivity to yield a cis dihydride product with one hydride tr
Autor:
Allen Krantz, Jerzy Gebicki
Publikováno v:
Journal of the American Chemical Society. 106:8093-8097
Phenol has been matrix-isolated in argon, nitrogen, and carbon monoxide. The magnitude of the shifts of key OH bands from gas-phase values indicates that phenol-matrix interactions increase in the series Ar < N/sub 2/ < CO. Phenol forms a 1:1 complex
Autor:
Robert C. Dunbar, M. Saber Ahmed
Publikováno v:
Journal of the American Chemical Society. 109:3215-3219
With use of the technique of competitive collisional quenching of two-photon dissociation, the collisional quenching of photoexcited bromobenzene ions was measured for 35 neutral partners. The number of collisions required for quenching ranged from 3
Autor:
W. B. Reynolds, Gerard Kraus
Publikováno v:
Journal of the American Chemical Society. 72:5621-5626
The extent of additive and substitutive chlorination was determined for emulsion polyisoprene, Hevea and gutta-percha chlorinated to different chlorine contents in darkness and in a nitrogen atmosphere. The maximum amount of additive chlorine that ca