Page 120 - Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005)

IR-7 Additive Nomenclature

C O N T E N T S

IR-7.1 Introduction
IR-7.1.1 General
IR-7.1.2 Choosing a c entral atom or atoms, or a c hain o r r ing s tructure
IR-7.1.3 Representing ligands in additive names
IR-7.1.4 Ions and radicals
IR-7.2 Mononuclear entities
IR-7.3 Polynuclear entities
IR-7.3.1 Symmetrical dinuclear entities
IR-7.3.2 Non-symmetrical dinuclear compounds
IR-7.3.3 Oligonuclear compounds
IR-7.4 Inorganic c hains and rings
IR-7.4.1 General
IR-7.4.2 Nodal d escriptor
IR-7.4.3 Name construction
IR-7.5 References

IR-7.1 I N T R O D U C T I O N

IR-7.1.1 General
Additive nomenclature was originally developed for Werner-type coordination compounds,
which were r egarded as composed of a c entral atom (or atoms) surrounded by added groups
known a s l igands, b ut many o ther types of compound may also b e c onveniently g iven
additive names. Such names are constructed by placing the names of the ligands (sometimes
modified) as prefixes to the name(s) o f t he central atom(s).
This Chapter deals w ith the general characteristics of additive nomenclature and
provides examples of additive n ames for simple mononuclear and polynuclear compounds.
Chain and ring compounds are then treated using additive principles supplemented by
further conventions. Additive names for inorganic acids are discussed i n C hapter I R-8.
Additive nomenclature as applied to metal coordination compounds is described in further
detail in Chapter IR-9 (where a fl owchart, Figure I R-9.1, p rovides a g eneral procedure for
naming coordination compounds). Additive names for a l arge number of simple compounds
are given in Table IX*.

* T ables numbered with a R oman numeral are collected together at the end of this book.

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