chair form


Also found in: Medical.

chair form

[′cher ‚fȯrm]
(physical chemistry)
A particular nonplanar conformation of a cyclic molecule with more than five atoms in the ring; for example, in the chair form of cyclohexane, the hydrogens are staggered and directed perpendicularly to the mean plane of the carbons (axial conformation, a) or equatorially to the center of the mean plane (equatorial conformation, e). Also known as chair conformation.
References in periodicals archive ?
Kidney Position, Flex & Reflex, & Chair Form, Multi Para Monitor (5 Para) (ECG + Spo2 + NIBP + Temp + Resp.
Not only do the contours of the weight-bearing elements of the chair form a harmonious combination, so do its surfaces in which different materials flow together.
This year's crop included Iceberg, a bench of wood and aluminium sheeting by Zaha Hadid (502), which attempts to crystallize movements of soil and water in chair form, and Three-2, by jakob MacFarlane (504).