Page 47 - Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005)

O R G A N O M E T A L L I C C O M P O U N D S IR-10.2

Examples:
27. Me Me
B N
Me N B Me
B N
Me Me
Cr
CO
OC
CO
6
tricarbonyl(Z -hexamethyl-1,3,5,2,4,6-triazatriborinane)chromium,
6
or tricarbonyl(Z -hexamethylcyclotriborazane)chromium

28.
P
P P
P P
Fe
Me Me
Me Me
Me
5
5
(pentamethyl-Z -cyclopentadienyl)(Z -pentaphospholyl)iron
This convention may also be used for ligands in which s-bonds are coordinated in a s ide-on
2
5
fashion, such as the H-H b ond in complexes of dihydrogen (i.e. Z -H 2 ) or the saturated C-H
6
bonds in ‘agostic’ interactions. The Z symbol and locants for agostic interactions are placed
separately from other locants at the end of the ligand name. In Example 30 the agostic bond
is denoted by a h alf arrow.
Examples:

29. PPr i 3
OC CO
W
H
CO
H i
PPr 3
2
tricarbonyl(Z -dihydrogen)bis(triisopropylphosphane)tungsten

30. +

Co
H
H
H 2 C
H
H H

4
2
5
4
[(1–3-Z)-but-2-en-1yl-Z -C ,H ](Z -cyclopentadienyl)cobalt(1þ)
224