Archives: Provisional Recommendations

Comprehensive definition of oxidation state

Oxidation state (OS) is a simple numerical attribute of an atom in a compound, which aids the systematic descriptive chemistry of the elements, scales trends in properties, and tracks key...

Vocabulary of concepts and terms in Chemometrics

Recommendations are given concerning the terminology relating to chemometrics. Building on ISO definitions of terms for basic concepts in statistics the vocabulary is concerned with mainstream chemometric methods. Where methods...

How to Name New Chemical Elements

 A procedure is proposed to name new chemical elements.  After the discovery of a new element is established by the joint IUPAC-IUPAP Working Group, the discoverers are invited to propose...

Nomenclature of Cyclic Peptides

International Union of Biochemistry and Molecular Biology International Union of Pure and Applied Chemistry Chemical Nomenclature and Structure Representation Division IUBMB-IUPAC Joint Commission on Biochemical Nomenclature These recommendations extend rule...