Luis Fernando Piedra-Garza - Jacobs University

6.5 Conclusions 160
6.6 References 162
Chapter VII. Discrete Molecular Assemblies of Diethyltin
Functionalized Heteropolytungstates
7.1 The Diethyltin Functionalized Eicosatungstodiphosphate Polyanion:
[{Sn(C 2 H 5 ) 2 (H 2 O) 2 }(P 2 W 20 O 70 K(H 2 O) 2 )] 7- 164
7.1.1 Synthetic Procedure 165
7.1.2 FT-Infrared Spectroscopy 166
7.1.3 Thermogravimetry 167
7.1.4 Single Crystal X-ray Diffraction 168
7.2 A Novel Diethyltin Functionalized Dimer Based on the Lone-Pair Containing
Trivacant Nonatungstoarsenate Keggin Anion:
[{Sn(C 2 H 5 ) 2 (H 2 O)} 3 (B-β-AsW 9 O 33 )] 6- 2 172
7.2.1 Synthetic Procedure 173
7.2.2 FT-Infrared Spectroscopy 173
7.2.3 Thermogravimetry 174
7.2.4 Single Crystal X-ray Diffraction 175
7.3 The Keggin-based Mixed Species [{Sn(C 2 H 5 ) 2 (H 2 O)}(B-α-AsW 9 O 33 )-
{Sn(C 2 H 5 ) 2 (H 2 O)} 2 (B-α-AsW 9 O 33 )] 12-
Diethyltin Containing Polyanion 180
7.3.1 Synthetic Procedure 181
7.3.2 FT-Infrared Spectroscopy 181
7.3.3 Thermogravimetry 183
xvi