ring hydrogen

См. также в других словарях:

• Ring Nebula — For the Ring Nebula in Barnard s Galaxy, see Ring Nebula (NGC 6822). The Ring Nebula M57, The Ring Nebula. Credit: NASA/STScI/AURA …   Wikipedia

• Hydrogen economy — The hydrogen economy is a proposed system of delivering energy using hydrogen. The term hydrogen economy was coined by John Bockris during a talk he gave in 1970 at General Motors (GM) Technical Center.[1] Hydrogen advocates promote hydrogen as… …   Wikipedia

• ring — 1. A circular band surrounding a wide central opening; a r. shaped or circular structure surrounding an opening or level area. SYN: anulus [TA]. 2. The closed ( i.e., endless) chain of atoms in a cyclic compound; commonly used for “cyclic” or… …   Medical dictionary

• Endohedral hydrogen fullerene — or H2@C60 is an endohedral fullerene containing molecular hydrogen. This chemical compound has a potential application in molecular electronics and was synthesized in 2005 at Kyoto University by the group of Koichi Komatsu [ Synthesis, Structure …   Wikipedia

• Rotating ring-disk electrode — A rotating ring disk electrode (RRDE) [Albery W.J.; Hitchman M.L. Ring Disc Electrodes Oxford: Clarendon Press 1971 (ISBN 978 0198553496)] is double working electrode used in hydrodynamic voltammetry, very similar to a rotating disk electrode… …   Wikipedia

• Dowd–Beckwith ring expansion reaction — The Dowd–Beckwith ring expansion reaction is an organic reaction in which a cyclic β keto ester is expanded by up to 4 carbons in a free radical ring expansion reaction through an α alkylhalo substituent [1] [2] …   Wikipedia

• Dowd-Beckwith ring expansion reaction — The Dowd Beckwith Ring Expansion Reaction is an organic reaction in which a cyclic β keto ester is expanded by up to 4 carbons in a free radical ring expansion reaction through an α alkylhalo substituent Ref|Dowd1 Ref|Dowd2 Ref|Beckwith1. The… …   Wikipedia

• Simple aromatic ring — Simple aromatic rings, also known as simple arenes or simple aromatics, are aromatic organic compounds that consist only of a conjugated planar ring system with delocalized pi electron clouds. Many simple aromatic rings have trivial names. They… …   Wikipedia

• Low-barrier hydrogen bond — A Low barrier hydrogen bond or LBHB is a special type of hydrogen bond. This type of bond is especially strong because the distance between acceptor and donor is especially short. In regular hydrogen bonds (for example the O H...O distance is at… …   Wikipedia

• Basic aromatic ring — Basic aromatic rings are aromatic rings in which the lone pair of electrons of a ring nitrogen atom is not part of the aromatic system and extends in the plane of the ring. This lone pair is responsible for the basicity of these nitrogenous bases …   Wikipedia

• benzene ring — n. a structural unit in the molecules of aromatic organic compounds, represented by a ring of six atoms of carbon with alternate double bonds between the carbon atoms: in the molecule of benzene six atoms of hydrogen are attached to the ring, one …   English World dictionary