Synthesis, spectroscopic characterization and crystal and molecular structures of phenylphosphonato SnR3 (R=Ph, Me) derivatives
Four new phenylphosphonato SnR3 (R=Ph, Me) derivatives have been synthesized and characterized by infrared and Mössbauer spectroscopy. The structure of catena-poly[PhPO3HSnMe3]n has been determined by single-crystal X-ray diffraction analysis. The SnIV atoms are five-coordinated in all compounds, wi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2013-03-01
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| Series: | Main Group Metal Chemistry |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/mgmc-2012-0038 |
| Summary: | Four new phenylphosphonato SnR3 (R=Ph, Me) derivatives have been synthesized and characterized by infrared and Mössbauer spectroscopy. The structure of catena-poly[PhPO3HSnMe3]n has been determined by single-crystal X-ray diffraction analysis. The SnIV atoms are five-coordinated in all compounds, with the SnC3O2 framework in a trans trigonal bipyramidal arrangement and the PhPO3H- anions being in axial positions. The molecular structure of [PhPO3HSnMe3]n is arranged as a one-dimensional coordination polymer in which planar SnMe3 groups are axially bridged by -O-P-O- linkages of the PhPO3H- ligand. Neighboring chains are linked via O-H∙∙∙O hydrogen bond interactions, generating a layered structure. In the R2NH2(PhPO3H)2SnR′3 (R=Cy, Bu; R′=Ph, Me), the SnPh3 or SnMe3 residue is axially coordinated by two monodentate PhPO3H-. The role of the dialkylammonium cation, R2NH2+, is crucial in the lattice building via a hydrogen bond network. These hydrogen bonds contribute to the crystal stability and compactness and result in a three-dimensional arrangement. The aqua complex PhPO3(SnPh3)2·2H2O has a discrete structure and the anion PhPO32- behaves as a bidentate ligand. |
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| ISSN: | 0792-1241 2191-0219 |