Page 113 - 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-6.3

Example:
24. ClH Si SiH Cl
2
2
2 H 4
HSi Si SiH
H
Cl Si 3 SiHCl 2
3
1 5
1,1,1,5,5-pentachloro-2,4-bis(chlorosilyl)pentasilane
(all other fi ve-silicon chains have fewer substituents)

IR-6.3.2 Hydrogen substitution in boron hydrides

The construction of names of derivatives of boron hydrides where hydrogen atoms have
been replaced b y s ubstituent groups follows the procedures g iven in Section IR-6.3.1. The
only special feature i s t he need for specifying replacement of a b ridging h ydrogen atom, in
which case the designator ‘m-’ is used in front of the substituent group name, as in Example
4 b elow.

Examples:
1. F B
2
B BF 2
F B
2
2-(difluoroboranyl)-1,1,3,3-tetrafluorotriborane(5)

2.

1

5 2

4 3

= C H 3 = F

2-fluoro-1,3-dimethylpentaborane(9), or
2-fluoro-1,3-dimethyl-2,3:2,5:3,4:4,5-tetra-mH-nido-pentaborane(9)

3.

= N H 2
diboran(6)amine

104