Bis- and tris-(trichlorogermyl)gold(I) anions in their salts with cyclic dications [Au2(Ph2PCH2PPh2)2 ]2+ and [Au2(Ph2PCH2CH2PPh2 )2]2+
Abstract
Insertion of GeCl
2
into the Au–Cl bonds of
[(AuCl)
2
(dppm)] or [(AuCl)
2
(dppe)]
(dppm = Ph
2
PCH
2
PPh
2
and
dppe = Ph
2
PCH
2
CH
2
PPh
2
) leads to the formation of bis(trichlorogermyl) complexes
[Au
2
(dppm/e)
2
]
2+
[Au(GeCl
3
)
2
]
2
-
, of which the dppm complex
undergoes slow decomposition in solution to give
[Au
2
(dppm)
2
][Au(GeCl
3
)
3
],
where the gold atom of the dianion is co-ordinated solely to three
germanium atoms.
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