Page 83 - Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005)

C O M P O S I T I O N A L N O M E N C L A T U R E I R-5.3

2
8. S 2 disulfide(2 )
2
9. Sn 5 pentastannide(2 )
4
10. Pb 9 nonaplumbide(4 )
In some cases, homopolyatomic a nions may be considered as derived from a p arent hydride
by removal of hydrons ( see Section IR-6.4).

Examples:
2
11. O 2 dioxidanediide
2
12. S 2 disulfanediide

IR-5.3.3.4 Heteropolyatomic anions

Heteropolyatomic a nions are usually named either substitutively (see Section IR-6.4.4) or
additively (see Chapter I R-7 and Section IR-9.2.2). Radical dots may be added to additive
names to indicate the presence of unpaired electron(s).
A f ew heteropolyatomic anions have established and still acceptable non-systematic
names.

Examples:
azanide (substitutive), dihydridonitrate(1 ) ( additive),
1. NH 2
or amide (acceptable n on-systematic)

2. GeH 3 germanide (substitutive),
or trihydridogermanate(1 ) ( additive)
3. HS sulfanide (substitutive), or hydridosulfate(1 ) ( additive)
4
4. H 3 S sulfanuide or l -sulfanide (both s ubstitutive),
or trihydridosulfate(1 ) ( additive)
4
5. H 2 S * sulfanuidyl or l -sulfanidyl (both substitutive),
or dihydridosulfate( 1 ) ( additive)
*
2
6. SO 3 trioxidosulfate(2 ) ( additive),
or sulfite (acceptable non-systematic)
7. OCl chloridooxygenate(1 ) ( additive),
or hypochlorite (acceptable non-systematic)

8. ClO 3 trioxidochlorate(1 ) ( additive),
or chlorate (acceptable n on-systematic)
5
9. [PF 6 ] hexafluoro-l -phosphanuide (substitutive),
or hexafluoridophosphate(1 ) ( additive)
10. [CuCl 4 ] 2 tetrachloridocuprate(II) (additive)
11. [Fe(CO) 4 ] 2 tetracarbonylferrate( II) (additive)

All acceptable, but not fully systematic, anion names are given in Table IX.

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