propellanen.

Brit.

/prə(ʊ)ˈpɛleɪn/, U.S.

/prəˈpɛˌleɪn/,

/proʊˈpɛˌleɪn/

Origin: Formed within English, by derivation. Etymons: propeller n., -ane suffix².

Etymology: < propell- (in propeller n., with reference to the shape of the molecule; compare quot. 1966) + -ane suffix².

Chemistry.

Any of a class of compounds having polycyclic molecules in which two directly connected carbon atoms are also linked by three bridging groups.

ΚΠ

1966 J. Altman et al. in Tetrahedron Suppl. 278 Based on examination of a model of [structure] 2 the trivial name ‘propellane’ has been suggested for such systems.

1992 J. March Adv. Org. Chem. (ed. 4) iv. 153 In certain small-ring systems, including small propellanes, the geometry of one or more carbon atoms is so constrained that all four of their valencies are directed to the same side of a plane.

2002 Proc. National Acad. Sci. U.S.A. 99 4788/1 A very limited selection of types and lengths of straight terminally functionalized molecular rods and connectors was available. We synthesized additional ones based on the oligomers of [1.1.1]propellane.

This is a new entry (OED Third Edition, June 2007; most recently modified version published online March 2022).

单词	propellane
释义	propellanen. Brit. /prə(ʊ)ˈpɛleɪn/, U.S. /prəˈpɛˌleɪn/, /proʊˈpɛˌleɪn/ Origin: Formed within English, by derivation. Etymons: propeller n., -ane suffix². Etymology: < propell- (in propeller n., with reference to the shape of the molecule; compare quot. 1966) + -ane suffix². Chemistry. Any of a class of compounds having polycyclic molecules in which two directly connected carbon atoms are also linked by three bridging groups. ΚΠ 1966 J. Altman et al. in Tetrahedron Suppl. 278 Based on examination of a model of [structure] 2 the trivial name ‘propellane’ has been suggested for such systems. 1992 J. March Adv. Org. Chem. (ed. 4) iv. 153 In certain small-ring systems, including small propellanes, the geometry of one or more carbon atoms is so constrained that all four of their valencies are directed to the same side of a plane. 2002 Proc. National Acad. Sci. U.S.A. 99 4788/1 A very limited selection of types and lengths of straight terminally functionalized molecular rods and connectors was available. We synthesized additional ones based on the oligomers of [1.1.1]propellane. This is a new entry (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.1966
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