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Synthesis and Structural Characterization of ... - Jacobs University

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Amal H. Ismail<br />

Ph.D. Thesis<br />

3.B.1.2. <strong>Synthesis</strong> ............................................................................................................. 99<br />

3.B.1.3. X-ray Crystallography ...................................................................................... 100<br />

3.B.1.4. Results <strong>and</strong> Discussion ..................................................................................... 102<br />

3.B.1.5. Conclusions ...................................................................................................... 108<br />

3.B.1.6. References ........................................................................................................ 109<br />

3.B.2. Mono- <strong>and</strong> Di-Lanthanide Derivatives <strong>of</strong> Tungstoantimonate(III) .................. 113<br />

3.B.2.1. Introduction ...................................................................................................... 113<br />

3.B.2.2. <strong>Synthesis</strong> ........................................................................................................... 116<br />

3.B.2.3. X-ray Crystallography ...................................................................................... 120<br />

3.B.2.4. Results <strong>and</strong> Discussion ..................................................................................... 122<br />

3.B.2.5. Conclusions ...................................................................................................... 131<br />

3.B.2.6. References ........................................................................................................ 132<br />

3.B.3. Lanthanide Substituted Polyoxoanions Containing Bridging Acetate Lig<strong>and</strong>:<br />

[{Ln(-CH 3 COO)(H 2 O) 2 (GeW 11 O 39 )} 2 ] 12− (Ln = Eu, Gd, Lu) ..................................... 135<br />

3.B.3.1. Introduction ...................................................................................................... 135<br />

3.B.3.2. <strong>Synthesis</strong> ........................................................................................................... 136<br />

3.B.3.3. X-ray Crystallography ...................................................................................... 138<br />

3.B.3.4. Results <strong>and</strong> Discussion ..................................................................................... 139<br />

3.B.3.5. Conclusions ...................................................................................................... 143<br />

3.B.3.6. References ........................................................................................................ 144<br />

Chapter IV<br />

Mixed Lanthanide/d-Transition Metal Containing POMs ............................................... 146<br />

Ring opening in the cyclic Phosphotungstate [Fe 16 O 2 (OH) 23 (H 2 O) 9 (P 8 W 49 O 189 )Ln 4 (H 2 O) 20 ] 11−<br />

................................................................................................................................................ 146<br />

4.1. Introduction ................................................................................................................. 146<br />

4.2. <strong>Synthesis</strong> ...................................................................................................................... 150<br />

vii

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