mesoadj.

Brit.

/ˈmɛsəʊ/,

/ˈmɛzəʊ/,

/ˈmiːsəʊ/,

/ˈmiːzəʊ/, U.S.

/ˈmɛzoʊ/,

/ˈmɛsoʊ/

Origin: Formed within English, by conversion. Etymon: meso- comb. form 2

Etymology: < meso- comb. form 2.

Chemistry.

Designating an isomer which has one or more pairs of enantiomorphic structural units so arranged that the molecule as a whole is optically inactive. Cf. meso- comb. form 2.Sometimes italicized in accordance with the style used in systematic chemical nomenclature.

ΚΠ

1896 Jrnl. Chem. Soc. 70 412 It is impossible to say which is the racemic acid and which the meso-form.

1907 J. B. Cohen Org. Chem. Adv. Students I. ii. 94 Ordinary inositol from beans and flesh is a meso compound.

1937 F. C. Whitmore Org. Chem. 53 These are stereo-isomers of the same type as the tartaric acids, one being meso and the other racemic.

1937 F. C. Whitmore Org. Chem. 371 Usually the meso-form can be separated from the dl-form by patient application of fractionation.

1956 Nature 11 Feb. 281/1 When it [sc. the filtrate] was acidified..the meso-isomer precipitated.

1968 R. O. C. Norman Princ. Org. Synthesis v. 154 As with other examples of diastereoisomers, the properties of meso forms are different from those of the isomeric mirror-image pairs.

1981 P. Sykes Guidebk. to Mechanism in Org. Chem. (ed. 5) vii. 177 Addition is completed through nucleophilic attack..on either side of the original double bond carbon atoms..to yield the meso dibromide.

This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).

单词	meso
释义	mesoadj. Brit. /ˈmɛsəʊ/, /ˈmɛzəʊ/, /ˈmiːsəʊ/, /ˈmiːzəʊ/, U.S. /ˈmɛzoʊ/, /ˈmɛsoʊ/ Origin: Formed within English, by conversion. Etymon: meso- comb. form 2 Etymology: < meso- comb. form 2. Chemistry. Designating an isomer which has one or more pairs of enantiomorphic structural units so arranged that the molecule as a whole is optically inactive. Cf. meso- comb. form 2.Sometimes italicized in accordance with the style used in systematic chemical nomenclature. ΚΠ 1896 Jrnl. Chem. Soc. 70 412 It is impossible to say which is the racemic acid and which the meso-form. 1907 J. B. Cohen Org. Chem. Adv. Students I. ii. 94 Ordinary inositol from beans and flesh is a meso compound. 1937 F. C. Whitmore Org. Chem. 53 These are stereo-isomers of the same type as the tartaric acids, one being meso and the other racemic. 1937 F. C. Whitmore Org. Chem. 371 Usually the meso-form can be separated from the dl-form by patient application of fractionation. 1956 Nature 11 Feb. 281/1 When it [sc. the filtrate] was acidified..the meso-isomer precipitated. 1968 R. O. C. Norman Princ. Org. Synthesis v. 154 As with other examples of diastereoisomers, the properties of meso forms are different from those of the isomeric mirror-image pairs. 1981 P. Sykes Guidebk. to Mechanism in Org. Chem. (ed. 5) vii. 177 Addition is completed through nucleophilic attack..on either side of the original double bond carbon atoms..to yield the meso dibromide. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022). > see also also refers to : meso-comb. form < adj.1896 see also
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mesoadj.

> see also