| 释义 |
-idene, suffix Chem.
[Prob. taken from ethylidene (ad. F. éthylydène (A. Lieben 1858, in Compt. Rend. XLVI. 663), f. éthylène with insertion of the -yd- of aldehyde).]
Forming the names of bivalent organic radicals in which both valencies derive from the same atom. Cf. -ylidene.
1927Chem. Abstr. XXI. 4576/1 -idene added to any radical usually means a double bond at point of attachment. 1966Nomencl. Org. Chem. (I.U.P.A.C.) (ed. 2) A. 16 Bivalent and trivalent radicals derived from univalent acyclic hydrocarbon radicals whose authorized names end in ‘-yl’ by removal of one or two hydrogen atoms from the carbon atom with the free valences are named by adding ‘-idene’ or ‘-idyne’, respectively, to the name of the corresponding univalent radical. |
