SCHEDULED MAINTENANCE
Synthesis and characterisation of gold-(I) and -(III) complexes with 1-methyl-2-sulfanyl-1,2-dicarba-closo-dodecaborate
Abstract
The reaction of
1-methyl-2-sulfanyl-1,2-dicarba-closo-dodecaborane with the
gold(I) complexes [AuCl(L)] afforded the neutral thiolate
derivatives [Au(SCB
10
H
10
CMe)L]
(L = PPh
3
1, PPh
2
Me 2 or
AsPh
3
3). Further reaction of 1 with
[Au(O
3
SCF
3
)(PPh
3
)] gave the dinuclear
species
[Au
2
(SCB
10
H
10
CMe)(PPh
3
)
2
][O
3
SCF
3
] 4. Another dinuclear
complex,
[Au
2
(SCB
10
H
10
CMe)
2
(µ-
dppe)] 5, can be synthesized by reaction of
[Au
2
Cl
2
(µ-dppe)]
(dppe = Ph
2
PCH
2
CH
2
PPh
2
) with 2 equivalents of HSCB
10
H
10
CMe.
The anionic derivatives
[N(PPh
3
)
2
][Au(SCB
10
H
10
CMe)
Cl] 6 and
[N(PPh
3
)
2
][Au(SCB
10
H
10
CMe)
2
] 7 were obtained by reaction of
HSCB
10
H
10
CMe with
[N(PPh
3
)
2
][AuCl
2
] in a 1∶1 or
2∶1 molar ratio, respectively. Finally, by reaction of the thiol
with suitable gold(III) precursors the anionic
[NBu
4
][Au(C
6
F
5
)
3
(SCB
10
H
10
CMe)] 8 or the neutral
[Au{(PPh
2
)
2
C
2
B
9
H
10
}(SCB
10
H
10
CMe)
2
] 9
derivatives were synthesized. Complexes 1, 3 and 6 have been
characterised by X-ray diffraction studies.
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