Archives: Provisional Recommendations

Definition of the chalcogen bond

This recommendation proposes a definition for the term “chalcogen bond”; it is recommended the term is used to designate the specific subset of inter- and intramolecular interactions formed by chalcogen...

Nomenclature of Flavonoids

Flavonoid structures, found in nature or obtained by synthesis, have become more and more complex, and a guide for aglycone names is provided here to permit the construction of the...

Definition of the mole

A definition of the mole is proposed and following a critical review of the definitions of fundamental chemical quantities.

Terminology of Separation Methods

Recommendations are given concerning the terminology of methods of separation in analytical chemistry, including chromatography, electromigration techniques, and field-flow fractionation and related techniques.