- intermediate ion
- 中离子
Atmospheric Sciences (English-Chinese) dictionary. 2014.
Atmospheric Sciences (English-Chinese) dictionary. 2014.
ion-exchange reaction — ▪ chemical reaction Introduction any of a class of chemical reactions between two substances (each consisting of positively and negatively charged species called ions (ion)) that involves an exchange of one or more ionic components.… … Universalium
Non-classical ion — Non classical ions in organic chemistry are a special type of carbonium ions displaying delocalization of sigma bonds in 3 center 2 electron bonds of bridged systems.[1] The term non classical ion was first used by John D. Roberts in 1951[2][3]… … Wikipedia
carbonium ion — /kahr boh nee euhm/ an organic ion containing a positively charged carbon atom (opposed to carbanion). [CARBON + IUM] * * * ▪ chemical ion Introduction any member of a class of organic molecules with positive charges localized at a carbon… … Universalium
Arenium ion — An arenium ion in organic chemistry is the cyclohexadienyl cation that appears as a reactive intermediate in electrophilic aromatic substitution. [ Stable carbocations. CXVIII. General concept and structure of carbocations based on… … Wikipedia
Reaction intermediate — A reaction intermediate or an intermediate is a molecular entity that is formed from the reactants (or preceding intermediates) and reacts further to give the directly observed products of a chemical reaction. Most chemical reactions are stepwise … Wikipedia
Intimate ion pair — In chemistry the intimate ion pair concept introduced by Saul Winstein describes the interactions between a cation, anion and surrounding solvent molecules.[1] In ordinary aqueous solutions of inorganic salts an ion is completely solvated and… … Wikipedia
Fast ion conductor — Fast ion conductors, also known as solid electrolytes and superionic conductors, are solid state electrical conductors which conduct due to the movement of ions through voids (or empty crystallographic positions)in their crystal lattice. One… … Wikipedia
Halonium ion — A ball and stick model of the bromonium ion formed from cyclopentene A halonium ion in organic chemistry is any onium compound (ion) containing a halogen atom carrying a positive charge. This cation has the general structure R X+ R where X is any … Wikipedia
Carbonium ion — CH5 redirects here. For the postal district, see CH postcode area. A carbonium ion is a carbocation of the penta or tetracoordinated nonclassical type such as an ion of the type R5C+.[1] Methanium CH5+ … Wikipedia
Gas cluster ion beam — Gas Cluster Ion Beams (GCIB) is a new technology for nano scale modification of surfaces. It can smooth a wide variety of surface material types to within an angstrom of roughness without subsurface damage. It is also used to chemically alter… … Wikipedia
Nitrenium ion — A nitrenium ion (also called: aminylium ion) in organic chemistry is a reactive intermediate based on nitrogen with both an electron lone pair and a positive charge and with two substituents (R2N+).[1] Nitrenium ions are isoelectronic to carbenes … Wikipedia