Results 81 to 90 of about 3,055,660 (264)

absolute configuration

, 2014
Citation: 'absolute configuration' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00020 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

Evidence for two-electron processes in the mutual neutralization of O- with O+ and N+ at Subthermal Collision Energies

, 2018
We have measured total absolute cross sections for the Mutual Neutralization (MN) of O- with O+/N+. A fine resolution (of about 50 meV) in the kinetic energy spectra of the product neutral atoms allows unique identification of the atomic states ...
Cederquist, H., de Ruette, N., Dochain, A., Kaminska, M., Launoy, T., Nascimento, R. F., Schmidt, H. T., Stockett, M. H., Urbain, X., Vaeck, N.   +9 more
core   +1 more source

Absolute configuration of (S)-(+)-[(Benzyloxymethyl)(tert-butyl)methylsilyl] methyl ketone [PDF]

, 1996
The absolute configuration of the title compound was confirmed by an X-ray crystal structure analysis of (R)-(+)-[(benzyloxymethyl)(tert-butyl)methylsilyl] methyl ketone 2,4,6-triisopropylphenylsulfonylhydrazone, C30H48N203SSi, reported herein.
Antonia Hess (3589880), Franziska Nippert (3589883), Klaus-Dieter Schlüter (339076), Martin Weber (1941247), Rolf Schreckenberg (339079)   +4 more
core   +4 more sources

Crystal structure and absolute configuration of (3S,4aS,8aS)-N-tert-butyl-2-[(S)-3-(2-chloro-4-nitrobenzamido)-2-hydroxypropyl]decahydroisoquinoline-3-carboxamide and (3S,4aS,8aS)-N-tert-butyl-2-{(S)-2-[(S)-1-(2-chloro-4-nitrobenzoyl)pyrrolidin-2-yl]-2-hydroxyethyl}decahydroisoquinoline-3-carboxamide

Acta Crystallographica Section E: Crystallographic Communications, 2015
The crystal structure and absolute configuration of the two new title nelfinavir analogs, C24H35ClN4O5, (I), and C27H39ClN4O5, (II), have been determined. Each of these molecules exhibits a number of disordered moieties.
Tucker Maxson, Jeffery A. Bertke, Danielle L. Gray, Douglas A. Mitchell   +3 more
doaj   +1 more source

(Sp)-1-Diphenylphosphanyl-2-{(S)-[2-(diphenylphosphanyl)phenyl]hydroxymethyl}ferrocene [PDF]

, 2008
The absolute configuration of the title compound, [Fe(C5H5)(C36H29OP2)], is Sp at the ferrocene group and S at the asymmetric C atom. Both P atoms have a trigonal-pyramidal conformation.
Bats, Jan W., Doppiu, Angelino, Hashmi, A. Stephen K., Rivas Nass, Andreas   +3 more
core   +3 more sources

What is moving in silica at 1 K? A computer study of the low-temperature anomalies

, 2005
Though the existence of two-level systems (TLS) is widely accepted to explain low temperature anomalies in many physical observables, knowledge about their properties is very rare.
A. Heuer, J. Reinisch, P. W. Anderson, V. G. Karpov   +3 more
core   +1 more source

Biocatalytic preparation and absolute configuration of enantiomerically pure fungistatic anti-2-benzylindane derivatives. Study of the detoxification mechanism by Botrytis cinerea [PDF]

, 2010
Enantiomerically pure 2-benzylindane derivatives were prepared using biocatalytic methods and their absolute configuration determined. (1R,2S)-2-Benzylindan-1-ol ((1R,2S)-2) and (S)-2-benzylindan-1-one ((S)-3) were produced by fermenting baker’s yeast.
Aleu, Bustillo, Bálint, Cristina Pinedo-Rivilla, Cui, De Gonzalo, Florey, Fronza, Isidro G. Collado, Josefina Aleu, Kokubun, Lamarche, Lorentzen, Manuel Grande Benito, Martínez, Nakamura, Osbourn, Petrignet, Pezet, Prost, Shieh, Smith, Snatzke, Stamb   +23 more
core   +2 more sources

Three New Highly Oxygenated Germacranolides from Carpesium Divaricatum and Their Cytotoxic Activity

Molecules, 2018
Three new highly oxygenated (2–4), and two known (1 and 5) germacranolides, were isolated from the whole plant of Carpesium divaricatum.
Tao Zhang, Jin-Guang Si, Qiu-Bo Zhang, Jia-Huan Chen, Gang Ding, Hong-Wu Zhang, Hong-Mei Jia, Zhong-Mei Zou   +7 more
doaj   +1 more source

Crystal structure of akuammicine, an indole alkaloid from Catharanthus roseus

Acta Crystallographica Section E: Crystallographic Communications, 2017
The title compound, C20H22N2O2, an alkaloid isolated from the Madagascar periwinkle, crystallizes in P1 with two independent but closely similar molecules in the unit cell. The molecules are linked into pairs by two N—H...O=C hydrogen bonds. The absolute
Mahdi Yahyazadeh, Gerold Jerz, Dirk Selmar, Peter Winterhalter, Peter G. Jones   +4 more
doaj   +1 more source

Accuracy of spike-train Fourier reconstruction for colliding nodes

, 2015
We consider Fourier reconstruction problem for signals F, which are linear combinations of shifted delta-functions. We assume the Fourier transform of F to be known on the frequency interval [-N,N], with an absolute error not exceeding e > 0.
Akinshin, Andrey, Batenkov, Dmitry, Yomdin, Yosef   +2 more
core   +1 more source