Synthesis and Structural Characterization of ... - Jacobs University

Amal H. Ismail
Ph.D. Thesis
1.6.1 Photocatalysis .............................................................................................................. 22
1.6.2 Acid catalysis .............................................................................................................. 24
1.6.3 Oxidation catalysis ...................................................................................................... 25
1.7 Lanthanide-containing polyoxotungstates .......................................................................... 26
1.7.1 Lanthanide-containing isopolyoxotungstates .............................................................. 26
1.7.2 Lanthanide-containing heteropolytungstates ............................................................... 29
1.7.3 Mixed lanthanide / d-transition metal ions containing POMs ..................................... 33
1.8 References .......................................................................................................................... 35
Chapter II
Experimental ........................................................................................................................... 41
2.1 Reagents ............................................................................................................................. 41
2.2 Instrumentation ................................................................................................................... 42
2.2.1 Fourier transform infrared spectroscopy ..................................................................... 42
2.2.2 Single crystal X-ray diffraction ................................................................................... 42
2.2.3 Thermogravimetry ....................................................................................................... 43
2.2.4 Multinuclear magnetic resonance spectroscopy .......................................................... 43
2.3 Preparation of starting materials ........................................................................................ 43
2.3.1 Synthesis of K 14 [As 2 W 19 O 67 (H 2 O)] ............................................................................ 43
2.3.2 Synthesis of Na 9 [B-α-AsW 9 O 33 ]·27H 2 O ..................................................................... 44
2.3.3 Synthesis of Na 9 [B-α-SbW 9 O 33 ]·27H 2 O ..................................................................... 44
2.3.4 Synthesis of Na 12 [Sb 2 W 22 O 74 (OH) 2 ]........................................................................... 44
2.3.5 Synthesis of K 8 [β 2 -GeW 11 O 39 ]·14H 2 O........................................................................ 44
2.3.6 Synthesis of K 8 [γ-GeW 10 O 36 ]·6H 2 O ........................................................................... 45
2.3.7 Synthesis of K 8 Na 2 [A--GeW 9 O 34 ]·25H 2 O ................................................................ 45
2.3.8 Synthesis of Na 10 [A--GeW 9 O 34 ]·4H 2 O ..................................................................... 46
2.3.9 Synthesis of K 8 [BW 11 O 39 H]·13H 2 O ........................................................................... 46
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