Zobrazeno 1 - 10
of 252
pro vyhledávání: '"Hans Peter, Reisenauer"'
Publikováno v:
The Journal of Physical Chemistry A. 125:7023-7028
We generated and isolated hitherto unreported aminohydroxymethylene (1, aminohydroxycarbene) in solid Ar via pyrolysis of oxalic acid monoamide (2). Astrochemically relevant carbene 1 is persistent under cryogenic conditions and only decomposes to HN
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 6, Iss 1, Pp 1061-1069 (2010)
The first C–H insertion of a hydroxycarbene species in the gas phase has been observed experimentally by means of high vacuum flash pyrolysis (HVFP) and subsequent matrix isolation: (o-Methoxyphenyl)glyoxylic acid gives non-isolable (o-methoxypheny
Externí odkaz:
https://doaj.org/article/9213d87ab70c47548092a75e50b0fc3b
Publikováno v:
The journal of physical chemistry. A. 125(32)
We generated and isolated hitherto unreported aminohydroxymethylene (
Autor:
Philippe Lesot, Ahmad Masarwa, Ilan Marek, Hans Peter Reisenauer, Liron Oskar, Dennis Gerbig, Aharon Loewenstein, Peter R. Schreiner
Publikováno v:
Angewandte Chemie
Angewandte Chemie, Wiley-VCH Verlag, 2015, 127 (44), pp.13298-13302. ⟨10.1002/ange.201505349⟩
Angewandte Chemie, Wiley-VCH Verlag, 2015, 127 (44), pp.13298-13302. ⟨10.1002/ange.201505349⟩
International audience; Die Bestimmung der absoluten Konfiguration chi- raler Molekülen gilt als das Herzstück der asymmetrischen Synthese. Hier untersuchen wir die spektroskopischen Grenzen der chiralen Differenzierung mit NMR-Spektroskopie in c
Autor:
Michael M. Linden, Peter R. Schreiner, Dennis Gerbig, Hans Peter Reisenauer, Thomas Müller, Annemarie Schäfer, Miriam Karni, Yitzhak Apeloig
Publikováno v:
Angewandte Chemie International Edition. 54:12404-12409
We report the evaporation of a stable cyclic silylene and its oxidation (with ozone or N2 O) through oxygen atom transfer to form the corresponding silanone under matrix isolation conditions. As uncomplexed silanones are rare owing to their very high
Autor:
Peter R. Schreiner, J. Philipp Wagner, Hans Peter Reisenauer, Dennis Gerbig, David Ley, János Sarka, Attila G. Császár, Alexander Vaughn, Wesley D. Allen
Publikováno v:
Journal of the American Chemical Society. 137:7828-7834
Matrix-isolation experiments near 3 K and state-of-the-art quantum chemical computations demonstrate that oxalic acid [1, (COOH)2] exhibits a sequential quantum mechanical tunneling phenomenon not previously observed. Intensities of numerous infrared
Publikováno v:
Chemical Communications. 51:10022-10025
The atmospherically highly relevant methylsulfinyl radical (CH3(O)S˙) readily reacts with molecular triplet oxygen in cryogenic argon matrices containing small amounts of (3)O2. Comparison of experimental and computed IR- and UV/Vis spectra, includi
Publikováno v:
Angewandte Chemie International Edition. 53:11766-11771
Carbonic acid (H2CO3), an essential molecule of life (e.g., as bicarbonate buffer), has been well characterized in solution and in the solid state, but for a long time, it has eluded its spectral characterization in the gas phase owing to a lack of c
Publikováno v:
The Journal of Physical Chemistry A. 119:2211-2216
The atmospherically highly relevant methylsulfonyl radical (CH3SO2(•)) was generated by high-vacuum flash pyrolysis (HVFP) of allylmethylsulfone and isolated in an argon matrix at 10 K; the allyl radical formed as the cofragment. Upon thermolysis,
Publikováno v:
Journal of Molecular Structure. 1025:2-5
UV irradiation converts matrix isolated (E,E)-oxalic acid monoamide (4) to its energetically less favorable (E,Z)-rotamer 5. The back-reaction 5 → 4 seems to be governed by [H]tunneling. Matrix IR spectroscopy in combination with density functional