6533b825fe1ef96bd1281e58

RESEARCH PRODUCT

Formation and mixed-valent behaviour of a substituted tetraferrocenylstannane.

Katja HeinzeChristoph FörsterTeuta GasiDaniel Siebler

subject

Models MolecularMolecular StructureNear-infrared spectroscopyMetals and AlloysAnalytical chemistryIntermetallicchemistry.chemical_elementTin CompoundsGeneral ChemistryNuclear magnetic resonance spectroscopyCrystallography X-RayCopperCatalysisSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCrystallographyParamagnetismchemistryMixed valentMaterials ChemistryCeramics and CompositesMoleculeFerrous CompoundsSpectroscopy

description

A tetrasubstituted tetraferrocenylstannane is formed from 1-bromoferrocene-1′-carboxylic acid methyl ester and copper bronze. The molecular structure is almost perfectly tetrahedral with Fe⋯Fe distances of around 6 A. In solution two sequential one-electron processes and one two-electron process are indicative of mixed-valent intermediates. Intermetallic interactions have been probed by preparative oxidation, paramagnetic NMR spectroscopy, Mosbauer spectroscopy, UV/Vis/NIR spectroscopy and DFT calculations.

10.1039/c0cc00227ehttps://pubmed.ncbi.nlm.nih.gov/20407688