- bridged bond
- 桥键
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
Crystal structure of boron-rich metal borides — Two single crystals of YB66 (1 cm diameter) grown by floating zone technique using (100) oriented seeds. In the top crystal, the seed (left from the black line) has same diameter as the crystal. In the bottom crystal (sliced), the seed is much… … Wikipedia
Alkene — This article is about the chemical compound. For the material, see Olefin fiber. Not to be confused with Alkane or Alkyne. A 3D model of ethylene, the simplest alkene. In organic chemistry, an alkene, olefin, or olefine is an unsaturated ch … Wikipedia
Ab initio quantum chemistry methods — are computational chemistry methods based on quantum chemistry.[1] The term ab initio was first used in quantum chemistry by Robert Parr and coworkers, including David Craig in a semiempirical study on the excited states of benzene.[2][3] The… … Wikipedia
coordination compound — Chem. complex (def. 10). Also called coordination complex. * * * ▪ chemistry Introduction any of a class of substances with chemical structures in which a central metal atom is surrounded by nonmetal atoms or groups of atoms, called ligands… … Universalium
Decamethyldizincocene — Properties Molecular formula C20H30 … Wikipedia
Metal-organic framework — Metal Organic Frameworks are crystalline compounds consisting of metal ions or clusters coordinated to often rigid organic molecules to form one , two , or three dimensional structures that can be porous. In some cases, the pores are stable to… … Wikipedia
Intramolecular Diels-Alder Cycloaddition — The basic Diels Alder reaction is the reaction between a diene and a dienophile to form a cyclic ring structure through the formation of new double bond and two new sigma bonds. The reaction was discovered in 1928 by Otto Paul Hermann Diels and… … Wikipedia
Tiffeneau-Demjanov rearrangement — The Tiffeneau Demjanov rearrangement (TDR) the chemical reaction of 1 aminomethyl cycloalkanols with nitrous acid to form an enlarged cycloketone.Ref|Tiffeneau1937After being in existence for over 65 years, the reaction is popular among organic… … Wikipedia
Ceramic matrix composite — Fracture surface of a fiber reinforced ceramic composed of SiC fibers and SiC matrix. The fiber pull out mechanism shown is the key to CMC properties … Wikipedia
Bredt's rule — is an empirical observation in organic chemistry that states that a double bond cannot be placed at the bridgehead of a bridged ring system, unless the rings are large enough, named after Julius Bredt.For example, two of the following isomers of… … Wikipedia
Oripavine — IUPAC name 6,7,8,14 Tetradehydro 4,5α epoxy 6 methoxy 17 methylmorphinan 3 ol … Wikipedia