deprotonatev.

Brit.

/ˌdiːˈprəʊtəneɪt/, U.S.

/diˈproʊdəˌneɪt/

Origin: Formed within English, by derivation. Etymons: de- prefix, protonate v.

Etymology: < de- prefix + protonate v. Compare slightly earlier deprotonation n.

Chemistry.

1. transitive. To remove a proton (an H⁺ ion) from (a molecule or atom).

ΚΠ

1952 Jrnl. Amer. Chem. Soc. 74 1816 The initially formed carbonium ion..is deprotonated by a second molecule of IV.

1972 Proc. National Acad. Sci. U.S.A. 69 115 An adjacent mechanism of the same group acts first as a general base to deprotonate the 2′-OH.

1991 D. T. Sawyer Oxygen Chem. ii. 20 O₂⁻ can deprotonate acids much weaker than water.

1999 Nature 18 Nov. 249/2 When Asp 61 is deprotonated, there is a dramatic 140°-rotation of the carboxy-terminal helix.

2. intransitive. Of a molecule or atom: to lose a proton.

ΚΠ

1964 Jrnl. Amer. Chem. Soc. 86 4772 A protonated intermediate, TBH⁺, which then deprotonates to form the product, BH.

1988 Proc. National Acad. Sci. U.S.A. 85 21 The Schiff base nitrogen deprotonates producing M₄₁₂.

1993 Dyes & Pigments 21 35 The NH group of the hydrazone isomer is fairly acidic and is supposed to deprotonate first.

Derivatives

deˈprotonated adj.

ΚΠ

1956 Jrnl. Org. Chem. 21 1399/2 This suggests that..sodium acetate is not needed for the formation of the deprotonated species.

1994 New Scientist 15 Oct. 89/1 Tannins are polyphenolic compounds and spend most of their time with the alcohol group deprotonated.

This is a new entry (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	deprotonate
释义	deprotonatev. Brit. /ˌdiːˈprəʊtəneɪt/, U.S. /diˈproʊdəˌneɪt/ Origin: Formed within English, by derivation. Etymons: de- prefix, protonate v. Etymology: < de- prefix + protonate v. Compare slightly earlier deprotonation n. Chemistry. 1. transitive. To remove a proton (an H⁺ ion) from (a molecule or atom). ΚΠ 1952 Jrnl. Amer. Chem. Soc. 74 1816 The initially formed carbonium ion..is deprotonated by a second molecule of IV. 1972 Proc. National Acad. Sci. U.S.A. 69 115 An adjacent mechanism of the same group acts first as a general base to deprotonate the 2′-OH. 1991 D. T. Sawyer Oxygen Chem. ii. 20 O₂⁻ can deprotonate acids much weaker than water. 1999 Nature 18 Nov. 249/2 When Asp 61 is deprotonated, there is a dramatic 140°-rotation of the carboxy-terminal helix. 2. intransitive. Of a molecule or atom: to lose a proton. ΚΠ 1964 Jrnl. Amer. Chem. Soc. 86 4772 A protonated intermediate, TBH⁺, which then deprotonates to form the product, BH. 1988 Proc. National Acad. Sci. U.S.A. 85 21 The Schiff base nitrogen deprotonates producing M₄₁₂. 1993 Dyes & Pigments 21 35 The NH group of the hydrazone isomer is fairly acidic and is supposed to deprotonate first. Derivatives deˈprotonated adj. ΚΠ 1956 Jrnl. Org. Chem. 21 1399/2 This suggests that..sodium acetate is not needed for the formation of the deprotonated species. 1994 New Scientist 15 Oct. 89/1 Tannins are polyphenolic compounds and spend most of their time with the alcohol group deprotonated. This is a new entry (OED Third Edition, December 2005; most recently modified version published online March 2022). < v.1952
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