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Grafting {CpRh}2+ on the surface of Nb and Ta Lindqvist-type POMElectronic supplementary information (ESI) available: X-ray powder patters (Fig. S1 and S2), crystal packing of compound 2 (Fig. S3 and S4); IR spectra of compounds 1 and 2 (Fig. S5). CCDC 1016219-1016220. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4dt03339f
New hybrid POM based on Lindqvist-type polyoxometalates [M 6 O 19 ] 8− (M = Nb, Ta) and organometallic fragment {Cp*Rh} 2+ have been isolated and characterized. X-ray quality crystals of K 4 [(Cp*Rh) 2 Nb 6 O 19 ]·20H 2 O ( 1 ) and Cs 4 [(Cp*Rh) 2 Ta 6 O 19 ]·18H 2 O ( 2 ) were obtained from solutio...
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| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Online Access: | Get full text |
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| Summary: | New hybrid POM based on Lindqvist-type polyoxometalates [M
6
O
19
]
8−
(M = Nb, Ta) and organometallic fragment {Cp*Rh}
2+
have been isolated and characterized. X-ray quality crystals of K
4
[(Cp*Rh)
2
Nb
6
O
19
]·20H
2
O (
1
) and Cs
4
[(Cp*Rh)
2
Ta
6
O
19
]·18H
2
O (
2
) were obtained from solutions with {Cp*Rh} : [M
6
O
19
]
8−
stoichiometry 2 : 1. The solution behavior of the hybrid polyoxoanions was studied with ESI-MS and
1
H DOSY NMR. Amongst the poorly investigated chemistry of polyoxotantalates, complex
2
is the first complex bearing a grafted organometallic fragment. The formation of 1 : 1 complexes was detected by ESI-MS techniques.
Structure of a new hybrid organometallic-pom complex [
trans
-{Cp*Rh}
2
M
6
O
19
]
4−
(M = Nb, Ta). |
|---|---|
| ISSN: | 1477-9226 1477-9234 |
| DOI: | 10.1039/c4dt03339f |