In chemistry, axial chirality is a special case of chirality in which a molecule contains two pairs of chemical groups in a non-planar arrangement about...

chirality (inherent chirality). These types of chirality are far less common than central chirality. BINOL is a typical example of an axially chiral molecule...

Chirality /kaɪˈrælɪtiː/ is a property of asymmetry important in several branches of science. The word chirality is derived from the Greek χείρ (kheir)...

outcomes and yields also contribute. Atropisomers exhibit axial chirality (planar chirality). When the barrier to racemization is high, as illustrated...

in order to control the stereochemical outcome of the synthesis. The chirality present in the auxiliary can bias the stereoselectivity of one or more...

A chiral phenomenon is one that is not identical to its mirror image (see the article on mathematical chirality). The spin of a particle may be used to...

left and right circularly polarized light A form of axial chirality A former name for inherent chirality Helix This disambiguation page lists articles associated...

assigned.: 1139ff  Some spiro compounds exhibit axial chirality. Spiroatoms can be the origin of chirality even when they lack the required four different...

Rotational symmetry has a more general discussion Chiral symmetry describes the use in quantum mechanics "Axial symmetry" American Meteorological Society glossary...

alkenes. If the number of consecutive double bonds is even, there is axial chirality as for allenes. The first reported complex containing a vinylidene...

characteristic of double bonds. Carbodiimides are chiral, possessing C2-symmetry and therefore axial chirality. However, due to the low energy barrier to the...

positions. This C2-symmetric framework lacks a stereogenic atom, but has axial chirality due to restricted rotation (atropisomerism). The barrier to racemization...

twisting about a bond. Atropisomerism An energetic form of axial chirality. This form of chirality derives from differential substitution about a bond, commonly...

to the Cahn–Ingold–Prelog priority rules, the configuration of the axial chirality can be determined by considering the substituents on the front atom...

ligand for transition-metal catalysed asymmetric synthesis. BINOL has axial chirality and the two enantiomers can be readily separated and are stable toward...

The asymmetric atom is called a chirality center, a type of stereocenter. A chirality center is also called a chiral center or an asymmetric center. Some...

predicted the correct structures of allenes and cumulenes as well as their axial chirality. He is also widely considered one of the founders of physical chemistry...

Roussel; Nicolas Vanthuyne; Patrick Piras (2012). Atropisomerism and Axial Chirality in Heteroaromatic Compounds. Advances in Heterocyclic Chemistry. Vol...

either aligned (right-handed chirality), or counter-aligned (left-handed chirality), with their momenta. In this case the chirality is a conserved quantum number...

massive, not massless, then a chirality-violating decay is allowed; however, it is not of the correct size. (Chirality is not a constant of motion of...

available at low expense. Chirality is introduced with the amino alcohols, as these are prepared from amino acids and hence are chiral (e.g. valinol). In general...

The axial current, also denoted the pseudo-vector or chiral current, is the conserved current associated to the chiral symmetry or axial symmetry of a...

racemization barrier that enantiomers have been isolated. Chirality (chemistry) Planar chirality Axial chirality Dalla Cort, Antonella; Mandolini, Luigi; Pasquini...

are notable for having chirality despite lacking both asymmetric carbons and chiral centers. Instead, there is axial chirality, which results from the...

Rezanka, P; Sigler, K (2008). "A biaryl xanthone derivative having axial chirality from Penicillium vinaceum". Journal of Natural Products. 71 (5): 820–3...

of their chirality, with some ligands containing central chirality on the phosphorus or carbon atoms, some containing biaryl axial chirality, and others...

The axial twist theory (a.k.a. axial twist hypothesis) is a scientific theory put forward to explain a range of unusual aspects of the body plan of vertebrates...

consists of a bis-helicene connected by an alkene double bond displaying axial chirality and having two stereocenters. One cycle of unidirectional rotation...

Some of the broken symmetries include the axial U(1) symmetry of the flavour group. This is broken by the chiral anomaly. The presence of instantons implied...

that is, the equations of motion from the principal chiral model (PCM). Sigma model Chirality (physics) Ward, R.S (November 1995). "Nontrivial scattering...