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Ionic liquid cations as methylation agent for extremely weak chalcogenido metalate nucleophiles
Selective in situ methylation of terminal chalcogenide ligands of molecular chalcogenido metalate anions in ionothermal reactions with alkylimidazolium-based ionic liquids yields a series of organo-functionalized chalcogenido metalate compounds. We present the syntheses and crystal structures of (C...
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| Published in: | Chemical science (Cambridge) 2019-05, Vol.1 (2), p.5211-5217 |
|---|---|
| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
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| Summary: | Selective
in situ
methylation of terminal chalcogenide ligands of molecular chalcogenido metalate anions in ionothermal reactions with alkylimidazolium-based ionic liquids yields a series of organo-functionalized chalcogenido metalate compounds. We present the syntheses and crystal structures of (C
4
C
1
C
1
Im)
4+
x
[Sn
10
S
16
O
4
(SMe)
4
][An]
x
(
1a-1f
), (dmmpH)
6
[Mn
4
Sn
4
Se
13
(SeMe)
4
] (
2
), and (C
n
C
1
Im)
6
[Hg
6
Te
10
(TeMe)
2
] (
3a
,
3b
). The methylation was confirmed by Raman spectroscopy, and the optical absorption properties of the methylated compounds were determined and compared to purely inorganic analogs.
Imidazolium-based ionic liquids served to selectively methylate terminal chalcogenide ligands of chalcogenidometalate clusters [Sn
10
S
16
O
4
(SMe)
4
]
4−
, [Mn
4
Sn
4
Se
13
(SeMe)
4
]
6−
, and [Hg
6
Te
10
(TeMe)
2
]
6−
. |
|---|---|
| ISSN: | 2041-6520 2041-6539 |
| DOI: | 10.1039/c9sc01358j |