Results 101 to 110 of about 3,055,660 (264)

Absolute-Structure Determination: Past, Present and Future

CHIMIA, 2014
Single-crystal X-ray crystallography is the major analytical technique in use today for absolute-configuration determination. The origins of absolute-structure determination, starting from Friedel's 1913 proof that the intensities of the ...
Howard D. Flack
doaj   +1 more source

Crystal structure of (1R,2S,4R,7R,8S,9R)-3,3-dichloro-8,9-epoxy-4,8,12,12-tetramethyltricyclo[5.5.0.02,4]dodecane

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C16H24Cl2O, is built up from two fused six- and seven-membered rings which bear a dichlorocyclopropane group and an epoxy group, respectively.
Ahmed Benzalim, Aziz Auhmani, My Youssef Ait Itto, Jean-Claude Daran, Abdelwahed Auhmani   +4 more
doaj   +1 more source

Conformation and absolute configuration of a ketone derivative of gallicin, a ten-membered ring sesquiterpene [PDF]

, 1984
M. A. Gómez-Rodríguez, M. Martínez‐Ripoll, S. García-Blanco   +2 more
openalex   +1 more source

A superconducting absolute spin valve

, 2018
A superconductor with a spin-split excitation spectrum behaves as an ideal ferromagnetic spin-injector in a tunneling junction. It was theoretical predicted that the combination of two such spin-split superconductors with independently tunable ...
Bergeret, F. S., De Simoni, G., Giazotto, F., Moodera, J. S., Strambini, E.   +4 more
core   +1 more source

Density functional theory using an optimized exchange-correlation potential

, 1995
We have performed self-consistent calculations for first and second row atoms using a variant of density-functional theory, the optimized effective potential method, with an approximation due to Krieger, Li and Iafrate and a correlation-energy functional
Almbladh, Becke, Colle, Colle, Davidson, Dreizler, E.K.U. Gross, Engel, Engel, Froese Fischer, Gilbert, Gill, Harriman, Hohenberg, Johnson, Kohn, Krieger, Krieger, Krieger, Lee, Montgomery, Norman, Parr, Perdew, Radzig, Sharp, Slater, Talman, Tobias Grabo, Vosko, Zhu, Zumbach, Zumbach   +32 more
core   +1 more source

Determination of the Absolute Configuration by 3D ED to Elucidate the Atroposelectivity in Aromatic Ring-Opening Metathesis

CHIMIA
The determination of the absolute configuration of molecules bearing different stereogenic elements represents a fundamental and indispensable task in the field of stereochemistry. Whereas X-ray crystallographic analysis has been established as a broadly
Valeriia Hutskalova, Christian Jandl, Alessandro Prescimone, Christof Sparr   +3 more
doaj   +1 more source

Synthesis, Chiral Resolution, and Absolute Configuration of Dissymmetric 4,12‐Difunctionalized [2.2]Paracyclophanes

, 2013
Racemic 4,12-difunctionalized [2.2]paracyclophanes were synthesized and successfully resolved by (recycling) HPLC on a stationary CHIRALPAK IA phase at a semipreparative scale.
Georg Meyer-Eppler, Elisabeth Vogelsang, Christian Benkhäuser, A. Schneider, G. Schnakenburg, A. Lützen   +5 more
semanticscholar   +1 more source

Absolute Configuration of Octahedral Metal Complexes: The Octant Sign. [PDF]

, 1965
Christine J. Hawkins, Erik Larsen, W. B. Pearson, Salo Gronowitz, Ragnar A. Hoffman, Anders Westerdahl   +5 more
openalex   +1 more source

Computational methods and points for attention in absolute configuration determination [PDF]

, 2023
Hua‐Jie Zhu, Yufang Wang, Laurence A. Nafié   +2 more
openalex   +1 more source

Absolute Configurations of Alkylcitric Acids. [PDF]

, 1977
Svante Brandänge, Staffan Josephson, Lars Mörch, Staffan Vallén, L. Nørskov, Gustav Schroll   +5 more
openalex   +1 more source