Hybrid Organic-Inorganic Materials

hybrid

The properties of POMs can be enhanced or modified with the introduction of secondary functional groups, for example, through the covalent attachment of organic/organometallic moieties to the metal–oxo framework. Novel structural architectures and unexpected synergistic effects can be achieved from the combination of both components in a final hybrid species. Organotin groups are good candidates for the systematic derivatization of POMs because SnIV can substitute addenda metal centers in POM skeletons, and also because the Sn–C bond shows a relatively high stability to hydrolysis in aqueous media. In particular, mono-organotin moieties (RSn3+) can be easily incorporated into the vacant sites of lacunary Keggin and Wells– Dawson heteropolytungstates, resulting in polysubstituted monomeric and dimeric polyanions containing tightly bound RSn3+ functionalities. A few years ago, our group introduced the use of diorganotin units (R2Sn2+) as linkers of polytungstates and -molybdates to construct large, unprecedented assemblies (examples including monomeric to dodecameric discrete clusters), or extended materials with dimensionalities ranging from 1 to 3.


Selected Publications

  • Selective Crystallization of Dimeric vs Monomeric Dimethyltin-Containing Tungstoarsenates(III) and – Antimonates(III) with the Guanidinium Cation
    Reinoso, S.; Dickman, M. H.; Kortz, U. Eur. J. Inorg. Chem. 2009, 947-953. [Read Online]
  • Organoantimony Containing Polyoxometalate: [{PhSbOH}]3(A-α-PW9O34)2]9-
    Piedra-Garza, L. F.; Dickman, M. H.; Moldovan, O.; Breunig, H. J.; Kortz, U. Inorg. Chem. 2009, 48, 411-413. [Read Online]
  • Phenyltin-Substituted 9-Tungstogermanate and Comparison with its Tungstosilicate Analogue
    Reinoso, S.; Dickman, M. H.; Praetorius, A.; Piedra-Garza, L. F.; Kortz, U. Inorg. Chem. 2008, 47, 8798-8806. [Read Online]
  • 13-Tungstoborate Stabilized by an Organostannoxane Hexamer
    Reinoso, S.; Dickman, M. H.; Matei, M. F.; Kortz, U. Inorg. Chem., 2007, 46, 4383-4385. [Read Online]
  • Complete List of Publications