| 释义 |
zerovalent Chem.|zɪərəʊˈveɪlənt|
[f. zero n. + -valent.]
Having an actual or formal valency of zero. Hence zeroˈvalency.
1940Chambers's Techn. Dict. 919/2 Zero-valent. 1953Barnett & Wilson Inorg. Chem. xxii. 282 Since the electrons forming these covalencies are supplied solely by the molecules of carbon monoxide, the metal atom is said to have zero-valency. 1965Jrnl. Chem. Soc. 847 The analogous reaction..of the naphthalene complex in its zerovalent formulation..cannot be distinguished from the possible consecutive reactions. 1977Inorg. Chem. XVI. 1313 (heading) Reactions of the zerovalent complex Ni[HP(C6H5)2]4. 1984Science 22 June 1330/2 A greater proportion of nickel in the catalytically active zero-valent state. |