Red_Book_2005

SUBSTITUTIVE NOMENCLATURE IR-6.3
Example:
24.
IR-6.3.2 Hydrogen substitution in boron hydrides
ClH2 Si
2
HSi
H
Si
H
SiH2 Cl
4
SiH
Cl3 Si 3 SiHCl2 1
5
1,1,1,5,5-pentachloro-2,4-bis(chlorosilyl)pentasilane
(all other five-silicon chains have fewer substituents)
The construction of names of derivatives of boron hydrides where hydrogen atoms have
been replaced bysubstituent groups follows the procedures given in Section IR-6.3.1. The
only special feature isthe need for specifying replacement of abridging hydrogen atom, in
which case the designator ‘ m -’ is used in front of the substituent group name, as in Example
4below.
Examples:
104
1. F 2 B
2.
3.
F 2 B
B BF 2
2-(difluoroboranyl)-1,1,3,3-tetrafluorotriborane(5)
4
5
=CH 3
2-fluoro-1,3-dimethylpentaborane(9), or
2-fluoro-1,3-dimethyl-2,3:2,5:3,4:4,5-tetra-m H - nido-pentaborane(9)
1
=NH 2
3
=F
2
diboran(6)amine