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Chapter 4 - Jacobs University

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<strong>Chapter</strong> 9<br />

Unpublished Results<br />

9.2.2.4 Conclusion<br />

We have synthesized a novel trimeric yttrium containing polyoxometalate, which may contain<br />

tetrahedral tungsten, linked through three yttrium ions. We have characterized it by single crystal<br />

XRD, NMR, IR and TGA. The final compound was synthesized in one-pot procedure in a simple<br />

aqueous conditions and it crystallizes in orthorhombic crystal system (space group Pnma). The<br />

given structure shows us that used precursor ligand Na 9 [a-SbW 9 O 33 ]∙27H 2 O is quite an<br />

interesting species which supports a yttrium cluster as well as and may have a tetrahedral central<br />

tungsten atom stabilizing the whole complex.<br />

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