Page 97 - Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005)

S U B S T I T U T I V E N O M E N C L A T U R E IR-6.2

Each method is used in Examples 1–4 below. When naming organic derivatives of
non-carbon homonuclear monocyclic parent hydrides, the Hantzsch–Widman name is
preferred for rings with 3 t o 1 0 m embers. For larger rings, the names given b y t he second
method are used. For more detailed rules on large-ring parent hydrides, s ee Section P-22.2
of Ref. 1.

Examples:

1. HN NH
HN NH
N
H
(i) H–W name: pentaazolidine
(ii) pentaazacyclopentane
(iii) cyclopentaazane

2. H 2 H 2
Si Si
H Si SiH 2
2
H Si SiH 2
2
Si Si
H 2 H 2
(i) H–W name: octasilocane
(ii) octasilacyclooctane
(iii) cyclooctasilane

3. H 2
1 Ge
HGe GeH
3 2
(i) H–W name: 1H-trigermirene
(ii) trigermacyclopropene
(iii) cyclotrigermene

4. 2 3
N N
1
HN N 4
N
5
(i) H–W name: 1H-pentaazole
1 2
N N

HN N
3
N
4
(ii) pentaazacyclopenta-1,3-diene
(iii) cyclopentaaza-1,3-diene

88