Page 168 - Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005)

IR-9.2 C O O R D I N A T I O N C O M P O U N D S

Examples:
9. +
H NPh
Ph N
C S
Ph
N N
CH 2
Cu
CH 2
Cl N
H 2

0
{N-[N-(2-amino-kN-ethyl)-N ,S-diphenylsulfonodiimidoyl-
0
kN]benzenimidamide-kN }chloridocopper(II)
10. NH +
Ph
C
HN Ph
S
Ph N N
CH 2
Cu
CH
Cl N 2
H 2
{N-[N-(2-amino-kN-ethyl)-N ,S-diphenylsulfonodiimidoyl-
0
2
0
k N,N ]benzenimidamide}chloridocopper(II)
11. PhN Ph +
HN S
C NH N CH
Ph Cu 2
CH 2
Cl N
H 2

{N-[N-(2-amino-kN-ethyl)-N ,S-diphenylsulfonodiimidoyl-
0
kN]benzenimidamide-kN}chloridocopper(II)

The distinction between t he names in Examples 9 a nd 11 rests on the conventional priming
of the imino nitrogen a tom in the benzenimidamide functional group. The prime
differentiates the imino benzenimidamide nitrogen atom from that which is substituted
(and unprimed at the beginning of the name).
The use of donor atom locants on the atomic s ymbols to indicate p oint of ligation is
again illustrated by the two isomeric bidentate modes of binding of the macrocycle 1,4,7-
triazecane (or 1,4,7-triazacyclodecane) (Examples 12 and 13). Conveying the formation of
4
1
2
the five-membered chelate r ing r equires the index k N ,N , w hile the six-membered c helate
7
2 1
ring requires t he index k N ,N . E xample 14 shows that due to the local n ature of the locants
used with k, t he same locant and atomic s ymbol may appear s everal times, referring to
different parts of the ligand.
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