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...
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chirality (inherent chirality). These types of chirality are far less common than central chirality. BINOL is a typical example of an axially chiral molecule...
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pseudo-axial orientation to minimize 1,3-diaxial interactions. The absolute stereochemistry of the two stereocenters is controlled by the chirality in the...
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outcomes and yields also contribute. Atropisomers exhibit axial chirality (planar chirality). When the barrier to racemization is high, as illustrated...
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Spiro compound (section Chirality)
assigned.: 1139ff Some spiro compounds exhibit axial chirality. Spiroatoms can be the origin of chirality even when they lack the required four different...
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Chirality (/kaɪˈrælɪti/) is a property of asymmetry important in several branches of science. The word chirality is derived from the Greek χείρ (kheir)...
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characteristic of double bonds. Carbodiimides are chiral, possessing C2-symmetry and therefore axial chirality. However, due to the low energy barrier to the...
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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...
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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...
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important consideration if the resulting biphenol compound displays axial chirality or atropoisomerism. Selectivity between homo- and hetero-coupled products...
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to the Cahn–Ingold–Prelog priority rules, the configuration of the axial chirality can be determined by considering the substituents on the front atom...
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sp2-hybridized carbon atoms. Usually atropisomers are chiral, and as such they are a form of axial chirality. Atropisomerism can be described as conformational...
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positions. This C2-symmetric framework lacks a stereogenic atom, but has axial chirality due to restricted rotation (atropisomerism). The barrier to racemization...
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ligand for transition-metal catalysed asymmetric synthesis. BINOL has axial chirality and the two enantiomers can be readily separated and are stable toward...
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physics, the axial current, also denoted the pseudo-vector or chiral current, is the conserved current associated to the chiral symmetry or axial symmetry...
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Roussel; Nicolas Vanthuyne; Patrick Piras (2012). Atropisomerism and Axial Chirality in Heteroaromatic Compounds. Advances in Heterocyclic Chemistry. Vol...
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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...
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Axiality (geometry), the degree of axial symmetry Chiral symmetry describes the use in quantum mechanics "Axial symmetry" American Meteorological Society...
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QCD vacuum (redirect from Partially conserved axial vector current)
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...
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alkenes. If the number of consecutive double bonds is even, there is axial chirality as for allenes. The first reported complex containing a vinylidene...
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formation. Key to the success of their approach is the axial-to-central transfer of chirality from the BINOL structure to the phosphorus atom during the...
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Cyclohexane conformation (redirect from Axial bond)
in the axial position. 1,3 Diaxial interactions occur when the non-hydrogen substituent on a cyclohexane occupies the axial position. This axial substituent...
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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...
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of their chirality, with some ligands containing central chirality on the phosphorus or carbon atoms, some containing biaryl axial chirality, and others...
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left and right circularly polarized light A form of axial chirality A former name for inherent chirality Helix This disambiguation page lists articles associated...
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Enantiomer (redirect from Chiral amplification)
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...
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either aligned (right-handed chirality), or counter-aligned (left-handed chirality), with their momenta. In this case the chirality is a conserved quantum number...
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According to the theory, the vertebrate body has a left-handed chirality. The axial twist theory competes with a number of other proposals that focus...
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chirality, most commonly when molecules possess stereogenic elements such as one or more stereocenters (central chirality), a stereogenic axis (axial...
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racemization barrier that enantiomers have been isolated. Chirality (chemistry) Planar chirality Axial chirality Dalla Cort, Antonella; Mandolini, Luigi; Pasquini...
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