In chemistry Chemistry (from Arabic: كيمياء Latinized: chem , meaning "value") is the science of matter and the changes it undergoes. The science of matter is also addressed by physics, but while physics takes a more general and fundamental approach, chemistry is more specialized - concerned with the composition, behavior, structure, and, a disulfide (also spelled disulphide) bond is a covalent bond A covalent bond is a form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms, and other covalent bonds. In short, the attraction-to-repulsion stability that forms between atoms when they share electrons is known as covalent bonding, usually derived by the coupling of two thiol In organic chemistry, a thiol is a compound that contains the functional group composed of a sulfur-hydrogen bond . Being the sulfur analogue of an alcohol group (-OH), this functional group is referred to either as a thiol group or a sulfhydryl group. More traditionally, thiols are often referred to as mercaptans groups In organic chemistry, functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. The same functional group will undergo the same or similar chemical reaction regardless of the size of the molecule it is a part of. However, its relative reactivity can be. The linkage is also called an SS-bond or disulfide bridge. The overall connectivity is therefore C-S-S-C. The terminology is widely used in biochemistry. Formally the connection is called a persulfide, in analogy to its congener, a peroxide Organic peroxides are organic compounds containing the peroxide functional group . If the R' is hydrogen, the compound is called an organic hydroperoxide. Peresters have general structure RC(O)OOR (R-O-O-R), but this terminology is obscure.
Formal depiction of disulfide bond formation as an oxidation.
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