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Alphabetical Index

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Physical Constants Units of Measure Physical Quantities SI Prefixes Ring Index General Formulae Exact Formulae Source Documents Terms by IUPAC Div.

Version 3.0.1 (7517 Terms)

DOI: 10.1351/goldbook

Jan Kaiser - Content Editor
Stuart Chalk - Technical Editor
Joint Subcommittee
on the IUPAC Gold Book

Terms (204) sourced from: 10.1351/pac199668122193

"Basic terminology of stereochemistry (IUPAC Recommendations 1996)", Moss, G.P., Pure and Applied Chemistry 1996, 68(12), 2193

ac ambo ap absolute configuration achiral angle strain anisometric anomeric effect anomers anti antiperiplanar apical (basal, equatorial) asymmetric asymmetric carbon atom asymmetric centre asymmetric destruction asymmetric induction asymmetric synthesis asymmetric transformation atropisomers axial (equatorial) axial chirality axis of chirality axis of helicity α (alpha), β (beta)

Baeyer strain Berry pseudorotation Bredt's rule bisecting conformation boat bond opposition strain bowsprit (flagpole) β (beta)

cis, trans cis-trans isomers C. I. P. system CIP priority Cahn–Ingold–Prelog system centre of chirality chair, boat, twist chair–chair interconversion chemical species chiral chirality chirality axis chirality centre chirality element chirality plane chirality sense chiroptic/chiroptical chirotopic clinal compensation configuration (stereochemical) conformation conformational analysis conformer conglomerate constitution constitutional isomerism crown conformation

d, l, dl deracemization desymmetrization desymmetrization step diastereoisomer excess diastereoisomerism diastereoisomerization diastereomeric ratio diastereomers diastereomorphism diastereotopic dihedral angle Δ (delta), Λ (lambda)

erythro, threo E, Z endo, exo, syn, anti ent eclipsed (eclipsing) eclipsing conformation eclipsing strain element of chirality enantioconvergence enantioenriched enantiomer enantiomeric excess enantiomeric purity enantiomeric ratio enantiomerically enriched enantiomerically pure enantiomerism enantiomerization enantiomorph enantiopure enantioselectivity enantiotopic envelope conformation epimerization epimers equatorial

Fischer projection Fischer–Rosanoff convention Fischer–Tollens projection fiducial group flagpole free rotation

gauche gauche effect

half-chair handedness helicity heterotopic hindered rotation homochiral homomorphic homotopic

in-out isomerism inversion isomer isomeric isomerism isometric isotopomer

kinetic resolution

l l, u

meso meso-compound mutarotation

Newman projection nonbonded interactions

optical activity optical purity optical rotation optical yield out-isomer

pro-E, pro-Z pro-R, pro-S perspective formula planar chirality plus, minus point group polytopal rearrangement primary structure priority prochirality prochirality centre projection formula pseudo-asymmetric carbon atom pseudorotation pyramidal inversion

quasi-enantiomers quasi-racemic compound quaternary structure

R*, S* R, S Re, Si r, s rel racemate racemic racemic compound racemic conglomerate racemization relative configuration resolution ring reversal rotamer rotational barrier rotatory power

sp syn s-cis, s-trans sawhorse projection sc secondary structure sequence rules skew space formula staggered conformation stereochemical formula stereoconvergence stereodescriptor stereoelectronic stereoelectronic control stereogenic unit stereoheterotopic stereoisomerism stereoisomers stereomutation stereoselective synthesis stereoselectivity stereospecificity steric strain superposability

tertiary structure topomerization torsion angle torsional stereoisomers transannular strain tub conformation

Walden inversion wedge projection

zig-zag projection

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