Synthesis, Structure and Catalytic Activity of ... - Jacobs University

List of Figures
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Fig. 1.1 Polyhedral representation of the Keggin ion showing the four triads in
four different colors surrounding the central tetrahedron in yellow 4
Fig. 1.2 Polyhedral representation of the three monolacunary species derived
from the β-Keggin ion showing the rotated triad in red 5
Fig. 1.3 α-[XM 12O 40] x- , A-α-[XM 9O 34] y- and B-α-[XM 9O 34] y- 6
Fig. 1.4 Polyhedral representation of the Wells-Dawson structure 7
Fig. 1.5 Polyhedral representation of the trilacunary [P 2W 15O 56] 12- and
hexalacunary [H 2P 2W 12O 48] 12- species of the Wells-Dawson structure 8
Fig. 1.6 Polyhedral representation of the [α-X 2W 18Ti 6O 77] dimer 15
Fig. 1.7 Polyhedral representation of “PW 11Ti” 17
Fig. 1.8 Polyhedral representation of “PW 10Ti 2” 17
Fig. 1.9 Polyhedral representation of “P 2W 15(TiO 2) 3(OH) 3” 18
Fig. 1.10 Polyhedral representation of the Linqvist anion [(MeO)TiW 5O 18] 3- 18
Fig. 1.11 Polyhedral representation of [{Ti(OH)(ox)} 2(µ-O)(α-PW 11O 39)] 7- where ox 2-
is the oxalate anion C 2O 4
2- 19
Fig. 1.12 Polyhedral representation of [(TiP 2W 15O 55OH) 2] 14- dimer 20
Fig. 1.13 Polyhedral representation of [{Ti 3P 2W 15O 57.5(OH) 3} 4] 24- , the tetramer 21
Fig. 1.14 Polyhedral representation of [{β-Ti 2SiW 10O 39} 4] 24- 22
Fig. 1.15 Polyhedral representation of [Ti 2(OH) 2As 2W 19O 67 (H 2O)] 8 22
x