Luis Fernando Piedra-Garza - Jacobs University

Figure 1.12 [X 2 W 21 O 71 (H 2 O) 3 ] n- , (a) X = P V , (b) X = As III 21
Figure 1.13 The monovacant [P 2 W 20 O 70 (H 2 O) 2 ] 10- polyanion with a potassium
cation in the cavity. (a) Front view, (b) Side view 22
Figure 1.14 The divacant [As 2 W 19 O 69 (H 2 O)] 14- polyanion with four potassium
cations in the cavity. (a) Front view, (b) Side view 23
Figure 1.15 The sandwich type [(BuSnOH) 3 (α-SiW 9 O 34 ) 2 ] 14- polyanion 28
Figure 1.16 The sandwich type [(PhSn) 3 Na 3 (α-SbW 9 O 33 ) 2 ] 6- polyanion 29
Figure 1.17 [(n-C 4 H 9 Sn) 2 Zn 2 (B-α-PW 9 O 34 ) 2 ] 8- 31
Figure 1.18 The dodecameric [{Sn(CH 3 ) 2 (H 2 O)} 24 {Sn(CH 3 ) 2 } 12 (A-XW 9 O 34 ) 12 ] 36-
(X = P V , As V ) polyanion 35
Figure 1.19 The [{Sn(CH 3 ) 2 } 4 (H 2 P 4 W 24 O 92 ) 2 ] 28- polyanion 36
Figure 1.20 The [{(CH 3 ) 2 Sn} 6 (OH) 2 O 2 (H 2 BW 13 O 46 ) 2 ] 12- polyanion 38
Figure 1.21 The flower pot [{(C 6 H 5 )Sn(OH)} 3 (A-α-GeW 9 O 34 )] 4- polyanion 39
Figure 2.1 Polyhedral representation of the [XW 12 O 40 ] (8−n)− Keggin anion 59
Figure 2.2 Front view of the monovacant [P 2 W 20 O 70 (H 2 O) 2 ] 10- (P 2 W 20 ) polyanion
with a potassium cation in the cavity 62
Figure 3.1 Polymeric Structure of Me 2 SnCl 2 and Et 2 SnCl 2 in the solid state 79
Figure 4.1 FT-Infrared Spectra of compounds GNa-1 (red), GNa-2 (blue)
and GNa-3 (green) 92
Figure 4.2 Thermogram of compound GNa-1 93
Figure 4.3 Thermogram of compound GNa-2 94
Figure 4.4 Thermogram of compound GNa-3 94
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