Results 91 to 100 of about 3,055,660 (264)

(1R,2S,4aR,6S,8R,8aS)-1-(3-Hydroxypropanoyl)-1,3,6,8-tetramethyl-1,2,4a,5,6,7,8,8a-octahydronaphthalene-2-carboxylic acid

IUCrData
The molecular structure of C18H28O4, (+)-diplodiatoxin, is described, whereby the absolute configuration of the structure of diplodiatoxin has been confirmed by single-crystal X-ray diffraction. Diplodiatoxin crystallizes in the chiral P43212 space group
Christo J. Botha, Gerda Fouche, Frederick P. Malan   +2 more
doaj   +1 more source

The Circular Dichroism and the Absolute Configuration of 2,7-Disubstituted Triptycenes

CHIMIA, 1972
The absolute configurations of (+)2,7-disubstituted triptycenes are determined by the CD spectral analysis. The result is not in agreement with the absolute configuration determined by the chemical correlation method combined with the X-ray result. This
J. Tanaka, F. Ogura, M. Kuritani
doaj   +1 more source

Absolute radiometric calibration of the EUNIS-06 170-205 A channel and calibration update for CDS/NIS

, 2009
The Extreme-Ultraviolet Normal-Incidence Spectrograph sounding-rocket payload was flown on 2006 April 12 (EUNIS-06), carrying two independent imaging spectrographs covering wave bands of 300-370 A in first order and 170-205 A in second order ...
Andretta, Brosius, Brosius, Brosius, Brosius, Brosius, Brosius, Brosius, Brosius, Del Zanna, Douglas M. Rabin, Jeffrey W. Brosius, Jess, Joseph M. Davila, Lang, Neupert, Rabin, Roger J. Thomas, Thomas, Thomas, Thompson, Tongjiang Wang   +21 more
core   +1 more source

Molecular electric moments calculated by using natural orbital functional theory

, 2016
The molecular electric dipole, quadrupole and octupole moments of a selected set of 21 spin-compensated molecules are determined employing the extended version of the Piris natural orbital functional 6 (PNOF6), using the triple-$\zeta$ Gaussian basis set
Mitxelena, Ion, Piris, Mario
core   +1 more source

Efficacy of the DFT+U formalism for modeling hole polarons in perovskite oxides

, 2014
We investigate the formation of self-trapped holes (STH) in three prototypical perovskites (SrTiO3, BaTiO3, PbTiO3) using a combination of density functional theory (DFT) calculations with local potentials and hybrid functionals.
Erhart, Paul, Klein, Andreas, Sadigh, Babak, Åberg, Daniel   +3 more
core   +1 more source

Total Synthesis and Absolute Configuration of the Marine Norditerpenoid Xestenone

Marine Drugs, 2009
Xestenone is a marine norditerpenoid found in the northeastern Pacific sponge Xestospongia vanilla. The relative configuration of C-3 and C-7 in xestenone was determined by NOESY spectral analysis.
Hiroaki Miyaoka, Etsuko Kawashima, Koichiro Ota, Takao Kurokawa   +3 more
doaj   +1 more source

K-Shell Photoionization of Singly Ionized Atomic Nitrogen: Experiment and Theory

, 2011
Absolute cross sections for the K-shell photoionization of C-like nitrogen ions were measured by employing the ion-photon merged-beam technique at the SOLEIL synchrotron radiation facility in Saint-Aubin, France.
Bizau, J. M., Blancard, C., Cubaynes, D., Gharaibeh, M. F., Guilbaud, S., Hassan, N. El, McLaughlin, B. M., Miron, C., Nicolas, C., Robert, E., Shorman, M. M. Al   +10 more
core   +1 more source

Preparation, absolute configuration, and thermolysis of (3R:5R)-(+)-trans-3,5-dimethyl-1-pyrazoline [PDF]

, 1969
Anupama Mishra, Robert J. Crawford
openalex   +1 more source

Redetermined structure of oxaline: absolute configuration using Cu Kα radiation

Acta Crystallographica Section E, 2012
In the title compound, C24H25N5O4, the stereogenic C atom bonded to three N atoms and one C atom has an S configuration and its directly bonded neighbour has an R configuration.
Peng Qu, Zhi-Yong Wu, Wei-Ming Zhu
doaj   +1 more source

Circular Dichroism Spectra and Absolute Configurations of cis,cis,cis-(C,N,O)-Dicyanobis(glycinato)cobaltate(III) and Dicyanobis-(β-alaninato)cobaltate(III) Complexes [PDF]

, 1981
Shuhei Fujinami, Muraji Shibata
openalex   +1 more source