stericadj.

Brit.

/ˈstɛrɪk/,

/ˈstɪərɪk/, U.S.

/ˈstɪrɪk/

Etymology: irregularly < ancient Greek στερεός solid + -ic suffix: compare stereochemistry n.

Chemistry.

Pertaining or relating to the arrangement in space of the atoms in a molecule. steric hindrance, hindrance of a reaction, held to be due to the spatial arrangement of the atoms in the molecules of one of the reacting compounds.

ΘΚΠ

the world > matter > chemistry > chemical structure or stereochemistry > [adjective] > of or relating to atomic framework or arrangement

structural1866

steric1898

transoid1959

1898 H. N. Stokes in Smithsonian Rep. 301 Stereochemical formulas are..more than reaction formulas, and the steric conception of the so-called double and triple union asserts that these actually exist.

1905 A. W. Stewart in Jrnl. Chem. Soc. 87 185 Angeli..suggested that steric hindrance played a part in the reactions involving the addition of metallic hydrogen sulphites [etc.]..to carbonyl groups.

Derivatives

ˈsterically adv. by, or as regards, the three-dimensional arrangement of atoms.

ΘΚΠ

the world > matter > chemistry > chemical structure or stereochemistry > [adverb]

stereochemically1890

sterically1918

1918 Jrnl. Chem. Soc. 114 i. 127 If only one group is sterically hindered, then reactions can take place at both tertiary amino-groups.

1959 New Scientist 19 Feb. 399/1 Propylene,..using a Natta catalyst, can be turned into straight chains of polypropylene molecules, with all the arms or side groups projecting in the same direction: that is to say, they are sterically oriented.

1974 G. B. Gill & M. R. Willis Pericyclic Reactions v. 130 The face to face interaction of the two π-systems is the only mode that is geometrically and sterically feasible.

This entry has not yet been fully updated (first published 1916; most recently modified version published online March 2022).

单词	steric
释义	stericadj. Brit. /ˈstɛrɪk/, /ˈstɪərɪk/, U.S. /ˈstɪrɪk/ Etymology: irregularly < ancient Greek στερεός solid + -ic suffix: compare stereochemistry n. Chemistry. Pertaining or relating to the arrangement in space of the atoms in a molecule. steric hindrance, hindrance of a reaction, held to be due to the spatial arrangement of the atoms in the molecules of one of the reacting compounds. ΘΚΠ the world > matter > chemistry > chemical structure or stereochemistry > [adjective] > of or relating to atomic framework or arrangement structural1866 steric1898 transoid1959 1898 H. N. Stokes in Smithsonian Rep. 301 Stereochemical formulas are..more than reaction formulas, and the steric conception of the so-called double and triple union asserts that these actually exist. 1905 A. W. Stewart in Jrnl. Chem. Soc. 87 185 Angeli..suggested that steric hindrance played a part in the reactions involving the addition of metallic hydrogen sulphites [etc.]..to carbonyl groups. Derivatives ˈsterically adv. by, or as regards, the three-dimensional arrangement of atoms. ΘΚΠ the world > matter > chemistry > chemical structure or stereochemistry > [adverb] stereochemically1890 sterically1918 1918 Jrnl. Chem. Soc. 114 i. 127 If only one group is sterically hindered, then reactions can take place at both tertiary amino-groups. 1959 New Scientist 19 Feb. 399/1 Propylene,..using a Natta catalyst, can be turned into straight chains of polypropylene molecules, with all the arms or side groups projecting in the same direction: that is to say, they are sterically oriented. 1974 G. B. Gill & M. R. Willis Pericyclic Reactions v. 130 The face to face interaction of the two π-systems is the only mode that is geometrically and sterically feasible. This entry has not yet been fully updated (first published 1916; most recently modified version published online March 2022). < adj.1898
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