title: Formation and mixed-valent behaviour of a substituted tetraferrocenylstannane.
abstract: A tetrasubstituted tetraferrocenylstannane is formed from 1-bromoferrocene-1'-carboxylic acid methyl ester and copper bronze. The molecular structure is almost perfectly tetrahedral with FeFe 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, Mössbauer spectroscopy, UV/Vis/NIR spectroscopy and DFT calculations.
authors.affiliation: Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
authors.forename: Daniel
authors.initials: D
authors.lastname: Siebler
authors.forename: Christoph
authors.initials: C
authors.lastname: Förster
authors.forename: Teuta
authors.initials: T
authors.lastname: Gasi
authors.forename: Katja
authors.initials: K
authors.lastname: Heinze
mesh_terms: D018360:Crystallography, X-Ray; D005296:Ferrous Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D017971:Tin Compounds / Q000737:chemistry*
chemical_list: D005296:Ferrous Compounds; D017971:Tin Compounds; C031525:stannane