| 释义 |
stereochemistry|ˌstɛriːəʊˈkɛmɪstrɪ|
[f. stereo- + chemistry, after G. stereochemie (V. Meyer 1890, in Ber. d. Deut. Chem. Ges. XXIII. 568), stereochemisch adj. (Auwers & Meyer 1888, in Ibid. XXI. 789).]
That department of chemistry which deals with theoretical differences in the relative position in space of atoms in a molecule, in relation to differences in the optical and chemical properties of the substances. Also, the stereochemical properties of something; a stereochemical configuration or arrangement.
1890V. Meyer in Smithsonian Rep. 366 Le Bel and van't Hoff..considering those substances which turn the plane of polarization of light, arrived at..a conception of the aggregation of the atoms within the molecules in space. Thus a field of study was created which van't Hoff called ‘la chimie dans l'espace’ and which we now call Stereochemistry. 1899Dublin Rev. Oct. 340 This is called Geometrical Isomerism or Stereochemistry. 1905Rep. Brit. Assoc. Adv. Sci. 1904 169 The stereochemistry of nitrogen has..attracted considerable attention. 1969Jrnl. Leeds Univ. Union Chem. Soc. XI. 43 The important stereochemistries are octahedral.., tetrahedral.., and square planar. 1972Nature 21 Jan. 180/3 Nyholm's researches in transition metal chemistry..were particularly concerned with metal carbonyl, metal–metal bonded systems, unusual stereochemistries and..the reactivity of coordinated organic groups. 1972DePuy & Chapman Molec. Reactions & Photochem. vi. 84 It is often observed that related thermal and photochemical processes, while both stereospecific, give products with differing stereochemistry.
Hence ˌstereo-ˈchemical a., pertaining to stereochemistry; stereoˈchemically adv., as regards the relative spatial positions of atoms; stereoˈchemist, an expert or specialist in stereochemistry.
1890V. Meyer in Smithsonian Rep. 366 Numerous cases of isomerism..were regarded as stereo-chemical ones. 1890Jrnl. Chem. Soc. LVIII. ii. 970 The authors regard the existence of stereochemically isomeric azo-compounds as doubtful. 1907A. W. Stewart Stereochem. 314 Stereochemical problems into which isomerism does not enter. 1935Tipson & Stiller in Harrow & Sherwin Textbk. Biochem. ii. 84 Where the two monoses are not identical, four stereochemically different disaccharides are theoretically capable of existence. 1937Nature 10 July 49/2 The stereochemist is catered for in the precise directions given for the synthesis and complete optical resolution of that useful stereochemical agent, α-phenylethylamine. 1963Times 23 Jan. 15/1 From there he went in 1905 to the University of Zurich to work with Alfred Werner, the distinguished stereochemist. 1974Gill & Willis Pericyclic Reactions iii. 75 The stereochemically distinguishable modes of addition on a single olefin component. |