Isomerization

In chemistry, isomerization or isomerisation is the process in which a molecule, polyatomic ion or molecular fragment is transformed into an isomer with a different chemical structure.

Many values of the standard free energy difference, Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.")

[3] Skeletal isomerization occurs in the cracking process, used in the petrochemical industry to convert straight chain alkanes to isoparaffins as exemplified in the conversion of normal octane to 2,5-dimethylhexane (an "isoparaffin"):[4] Fuels containing branched hydrocarbons are favored for internal combustion engines for their higher octane rating.

Aldose-ketose isomerism, also known as Lobry de Bruyn–van Ekenstein transformation, provides an example in saccharide chemistry.

When a pair of CO are bridging, cis and trans isomers are possible depending on the location of the C5H5 groups.

Formation of decaphenylferrocene from its linkage isomer
Formation of decaphenylferrocene from its linkage isomer