monoanionn.

Brit.

/ˌmɒnəʊˈanʌɪən/, U.S.

/ˌmɑnoʊˈænˌaɪən/

Origin: Formed within English, by compounding. Etymons: mono- comb. form, anion n.

Etymology: < mono- comb. form + anion n. Compare earlier polyanion n.In quot. 1967, monoanion is to be inferred contextually.

Chemistry.

An ion having a single negative charge.

ΚΠ

1967 Molecular Physics 12 533 The E.S.R. spectra of both the mono and the dianion show very special effects.

1981 P. Sykes Guidebk. to Mechanism in Org. Chem. (ed. 5) iii. 63 Cis-butenedioic (maleic) acid..is a much stronger acid than trans-butenedioic (fumaric) acid.., due to the intramolecular hydrogen bonding that can take place with the former, but not with the latter, leading to the relative stabilisation of the cis (maleate, 7) mono-anion.

1991 Origins of Life & Evol. of Biosphere 21 199 An earlier study..indicated two modes of reaction of the phosphate monoanion and dianion.

This is a new entry (OED Third Edition, December 2002; most recently modified version published online March 2022).

单词	monoanion
释义	monoanionn. Brit. /ˌmɒnəʊˈanʌɪən/, U.S. /ˌmɑnoʊˈænˌaɪən/ Origin: Formed within English, by compounding. Etymons: mono- comb. form, anion n. Etymology: < mono- comb. form + anion n. Compare earlier polyanion n.In quot. 1967, monoanion is to be inferred contextually. Chemistry. An ion having a single negative charge. ΚΠ 1967 Molecular Physics 12 533 The E.S.R. spectra of both the mono and the dianion show very special effects. 1981 P. Sykes Guidebk. to Mechanism in Org. Chem. (ed. 5) iii. 63 Cis-butenedioic (maleic) acid..is a much stronger acid than trans-butenedioic (fumaric) acid.., due to the intramolecular hydrogen bonding that can take place with the former, but not with the latter, leading to the relative stabilisation of the cis (maleate, 7) mono-anion. 1991 Origins of Life & Evol. of Biosphere 21 199 An earlier study..indicated two modes of reaction of the phosphate monoanion and dianion. This is a new entry (OED Third Edition, December 2002; most recently modified version published online March 2022). < n.1967
随便看	anion gap anion-active anionactive anionic anionics anionoid anionotropic anionotropy anions anired aniridia anis anis- anisakiasis anisal anisalyl anisamate anisamic acid anisamide anisamine anisanilide anisanthous anisate anisated anise