炔烃（Alkyne）.doc

炔烃（Alkyne） Alkyne medical aircraft General alkyne hydrocarbon molecules containing carbon carbon triple bonds, its functional groups for carbon carbon triple bond (C = C), molecular formula CnH2n-2, is a kind of unsaturated hydrocarbons. Alkyne compounds with simple acetylene (C2H2), propargyl (C3H4) etc.. Simple alkynes melting point, boiling point, density ratio has the same number of carbon atoms of the alkane or alkene is higher. Insoluble in water, soluble in ether, benzene, carbon tetrachloride and other organic solvents. Hydrogen, halogen, and alkyne hydrogen halide, water addition reaction, the polymerization reaction can occur. Acetylene is used in industry as a raw material for welding. Catalog Isomerism Hybrid orbital Physical property Chemical properties (1) oxidation (2) addition reaction (3) polymerization (4) the reaction of alkyne hydrogen Isomerism Hybrid orbital Physical property Chemical properties (1) oxidation (2) addition reaction (3) polymerization (4) the reaction of alkyne hydrogen Expand edit this paragraph isomerism Isomerism of alkynes: alkynes due to carbon chain structure and triple bonds in different position, also has the same for differentiation of Alkynes Constitutive phenomena. But because the triple branched position limit, the number of the olefin isomers than the same number of carbon atoms is less. For example, containing five carbon atoms of alkynes, only three isomers: 1- pentyne (CH = C-CH2-CH2-CH3); 2- pentyne (CH3-CH2-C = C-CH3); 3- methyl -1- yne. [1] Edit this paragraph hybrid orbital Alkynes is a kind of aliphatic hydrocarbon containing carbon carbon triple bond. Unsaturated hydrocarbons. The carbon atoms of the 2S orbital alkynes with a 2P hybrid orbital, the formation of the same two SP hybrid orbital. The pile is distributed on both sides of the carbon atom, with an angle of 180 degrees between the two. Acetylene carbon atoms, a SP hybridized orbital, and 1S orbitals of hydrogen atoms form hydrocarbon hydrogen bonds,