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Self-assembly of dilacunary building blocks into high-nuclear Ln(16)As(16)W(164)O(576)(OH)(8)(H(2)O)(42)](80-) (Ln = Eu(III), Gd(III), Tb(III), Dy(III), and Ho(III)) polyoxotungstates


Hussain, F; Patzke, Greta R (2011). Self-assembly of dilacunary building blocks into high-nuclear Ln(16)As(16)W(164)O(576)(OH)(8)(H(2)O)(42)](80-) (Ln = Eu(III), Gd(III), Tb(III), Dy(III), and Ho(III)) polyoxotungstates. CrystEngComm, 13(2):530-536.

Abstract

A new family of Ln(16)As(16)W(164)O(576)(OH)(8)(H(2)O)(42)](80-) (Ln = Eu(III), Gd(III), Tb(III), Dy(III), and Ho(III)) nanoclusters has been synthesized from a self-assembly process in solution. The novel macroanion is constituted of two identical sub-units with the formula Gd(8)As(8)W(82)O(288)(OH)(4)(H(2)O)(21)](40-) and it was obtained from the versatile building block As(2)W(19)O(67)(H(2)O)](14-) in combination with mid to late lanthanoid cations. All compounds have been structurally characterized and the magnetic properties of the Gd-containing member of the series have been investigated. The novel macroanion represents the largest polyoxotungstate reported to date and the influence of the templating cations on the molecular architecture is discussed. Furthermore, the spectrum of lanthanide linkers for the construction of large polyoxotungstates has been amplified in the present approach.

Abstract

A new family of Ln(16)As(16)W(164)O(576)(OH)(8)(H(2)O)(42)](80-) (Ln = Eu(III), Gd(III), Tb(III), Dy(III), and Ho(III)) nanoclusters has been synthesized from a self-assembly process in solution. The novel macroanion is constituted of two identical sub-units with the formula Gd(8)As(8)W(82)O(288)(OH)(4)(H(2)O)(21)](40-) and it was obtained from the versatile building block As(2)W(19)O(67)(H(2)O)](14-) in combination with mid to late lanthanoid cations. All compounds have been structurally characterized and the magnetic properties of the Gd-containing member of the series have been investigated. The novel macroanion represents the largest polyoxotungstate reported to date and the influence of the templating cations on the molecular architecture is discussed. Furthermore, the spectrum of lanthanide linkers for the construction of large polyoxotungstates has been amplified in the present approach.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2011
Deposited On:14 Mar 2012 14:13
Last Modified:07 Dec 2017 13:09
Publisher:Royal Society of Chemistry
ISSN:1466-8033
Publisher DOI:https://doi.org/10.1039/c003489d
Other Identification Number:ISI:000285514000026

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