IUPAC
Proper noun
Meaning
IUPAC
(chemistry) Acronym of International Union of Pure and Applied Chemistry: an organization that establishes official names of chemical elements and compounds.
Synonyms
Examples
According to the IUPAC definition, a metallocene contains a transition metal and two cyclopentadienyl ligands coordinated in a sandwich structure, i.e., the two cyclopentadienyl anions are on parallel planes with equal bond lengths and strengths.
Amino acid and nucleotide base codes IUPAC also has a system for giving codes to identify amino acids and nucleotide bases.
After the war, East and West Germany were eventually readmitted to IUPAC.
An IUPAC project, "Towards a comprehensive definition of oxidation state", (project 2008-040-1-200) started in 2009.
Although many other chemists have repeated this advice, IUPAC and most chemistry texts still favour the usage of allotrope and allotropy for elements only.
Although rarely used, IUPAC -recommended names also exist.