摘要: Journal of the American Chemical Society - Nucleophilic heteroaromatic substitution. XXXII. Meisenheimer-type compounds from heteroaromatic substrates. The reaction of methoxide ion with 3,5-dinitro-2-methoxypyridine in methanol and dimethyl sulfoxide-methanol mixtures (ACS Publications)...
melted.If the liquid is heated the particles will move around even faster as their average energy increases, some particles at the surface of the liquid have enough energy to overcome the forces of attraction between themselves and other particles in the liquid and they escape to form a gas.
In this study, the stability parameters and adaptation capabilities of 9 lines, which have been obtained by pure line selection ...关键词: crop quality crop yield fennel lines volatile compounds DOI: 10.7161/anajas.2012.v27n1.2330 被引量: 4 ...
The 2009 Import and Export Market for Stable Isotopes, Stable Compounds, and Rare-Earth Metal Compounds or Mixtures of Yttrium or Scandium in Latin America. The 2009 Import and Export Market for Stable Isotopes, Stable Compounds, and Rare-Earth Metal Compounds or Mixtures of Yttrium or Scandium ...
Metal Winning: Occurrence and Ore-Preparation Occurrence. Metals occur mainly in the earth's crust, sometimes in the " native " or free elemental form, but usually as compounds with other elements. Naturally-occurring elements and compounds are known as minerals; compound minerals a... A. R....
Exemplified monomers are methyl methacrylate, chloroprene and acrylonitrile. Stereostructures are given in examples.ALSO:The preparations of organo-metallic compounds of metals of Group IVA to VIA of the Mendeleeff Periodic Table of Elements which contain at least one p -allylic ligand are described....
Phosphates having the NaZr2(PO4)3 structure and containing titanium (or zirconium) and elements in oxidation degree 2+ (calcium or zinc) Complex phosphates Ca0.5 + x Zn x E2 − x (PO4)3 (E = Ti, Zr) having NaZr2(PO4)3 (NZP) structure have been prepared and characterized by X-...