Keys to the new species and related taxa of Paspalum subg. Ceresia are also presented.Jadwiga FrelekZsuzsa Majer-DeckerGünther SnatzkeNovon A Journal for Botanical Nomenclature
18. Absolute Configuration of (9R)-9-Hydroxy-4,7E-megastigmadien-3-one (3-Oxo-alpha-ionol). Aasen,Arne,J.,... - 《Acta Chem Scand》 被引量: 56发表: 1973年 Tobacco chemistry. 24. (9R)-9-hydroxy-4-megastigmen-3-one, a new tobacco constituent We report the development of a ...
The crystal structure was solved by direct methods on the basis of 1493 counter X-ray diffraction data (CuK alpha) and refined to R = 5.1%. The configuration of the thiophosphate group is Rp; conformational parameters are: glycosyl torsion angle anti, -151.9(5) degrees, sugar pucker C(3'...
Until recently, the absolute configuration was not known for any optically active compound, but in the course of a theoretical calculation of rotatory power, Boysdeduced a rule giving the absolute configuration of any enantiomorph from the sense of its rotation-namely, ``that a dextro compound ...
A factor known as hormone alpha1 is secreted by the A1 mating type and induces the formation of sexual spores (oospores) in the A2 mating type. Here we describe the asymmetric synthesis and assignment of the absolute configuration of hormone alpha1 by oospore-inducing assays of the synthesized...
magnetic constant (redirected fromabsolute permeability) Encyclopedia magnetic constant n (General Physics) the permeability of free space, which has the value 4π × 10–7henry per metre. Symbol:M0Also called:absolute permeability Collins English Dictionary – Complete and Unabridged, 12th Edition 2014...
Returns the allowed package for views which may act as a handwriting delegator for this delegate editor view, as set by #setAllowedHandwritingDelegatorPackage. (Inherited from View) Alpha The opacity of the view. -or- Sets the opacity of the view to a value from 0 to 1, where 0 means...
Owen, J.D., Absolute-Configuration of Most Potent Isomer of Pyrethroid Insecticide by Crystal-Structure Analysis Journal of the Chemical Society-Perkin Transactions 1, 1975(19): p. 1865-1868.Absolute configuration of the most potent isomer of the pyrethroid insecticide alpha-cyano-3-phenoxybenzyl ...
An experiment is introduced to a sophomore chemistry course that demonstrates the effeciency and enantiospecificity of microbial/enzyme-mediated reactions and the use of NMR methods in determining the optical activity and absolute configuration of chiral alcohols. Keywords (Audience): Second-Year Undergrad...
The data processing and acquisition (DAQ) system configuration, involving the software and the electronics, is similar in both setups and a diagram is shown in Fig. 4 Table 1 The four XA configurations installed in ProtoDUNE-HD Full size table Fig. 4 Schematic of the data acquisition system...