Isomerism in a sentence

Chain isomerism In chain isomerism, or skeletal isomerism, components of the (usually carbon) skeleton are distinctly re-ordered to create different structures.

A related type of isomerism in octahedral MX 3 Y 3 complexes is facial–meridional (or fac/mer) isomerism, in which different numbers of ligands are cis or trans to each other.

Conformers main Conformational isomerism is a form of isomerism that describes the phenomenon of molecules with the same structural formula but with different shapes due to rotations about one or more bonds.

Alicyclic compounds can also display cis–trans isomerism.

And, indeed, it was not until 1936 that the young physicist Carl Friedrich von Weizsäcker succeeded in providing a theoretical explanation of the phenomenon of nuclear isomerism.

Cis and trans descriptors are not used for cases of conformational isomerism where the two geometric forms easily interconvert, such as most open-chain single-bonded structures; instead, the terms “syn” and “anti” would be used.

Cis–trans and E-Z isomerism main Stereoisomerism about double bonds arises because rotation about the double bond is restricted, keeping the substituents fixed relative to each other.

Diazenes Diazenes (and the related diphosphenes ) can also exhibit cis/trans isomerism.

For example, there may be two (or more) reaction paths for the isomerism above.

Functional group isomerism Functional isomers are structural isomers that have the same molecular formula (that is, the same number of atoms of the same elements), but the atoms are connected in different ways so that the groupings are dissimilar.

In the older literature, one encounters: *Ionisation isomerism describes the possible isomers arising from the exchange between the outer sphere and inner sphere.

Isomerism The two enantiomers of alanine, D-alanine and L-alanine The alpha amino acids are the most common form found in nature, but only when occurring in the L-isomer.

Older classifications of isomerism Traditional classifications of the kinds of isomer have become archaic with the advent of modern structural chemistry.

Structure and isomerism Galactose exists in both open-chain and cyclic form.

There exist many kinds of isomerism in coordination complexes, just as in many other compounds.

The simplest examples of cis-trans isomerism are the 1,2-disubstituted ethenes, like the dichloroethene (C 2 H 2 Cl 2 ) isomers shown below.

This type of isomerism occurs when the counter ion of the complex is also a potential ligand.

This usage of "d-" and "l-" is no longer followed in carbohydrate chemistry. citation Ring-straight chain isomerism Glucose can exist in both a straight-chain and ring form.