A Ferrocenyl-Backboned Unsymmetric O,C-Coordinating Ligand and Its Tin Derivatives

The syntheses of the phosphonyl-substituted ferrocenyl stannane Fe[{(5)-C5H3-1-SnPh3-2-P(O)(O-iPr)(2)}{(5)-C5H4P(O)(O-iPr)(2)}] (1) and its iodine derivative Fe[{(5)-C5H3-1-SnPh2I-2-P(O)(O-iPr)(2)}{(5)-C5H4P(O)(O-iPr)(2)}] (2) are reported. The syntheses of the corresponding salts Fe[{(5)-C5H3-1-SnPh2-2-P(O)(O-iPr)(2)}{(5)-C5H4P(O)(O-iPr)(2)}]X (3, X=Al{OC(CF3)(3)}(4), 4, X=ClO4, 5, X=HgI3), respectively, are also described. The compounds are characterized by elemental analyses, H-1, C-13, P-31, Sn-119 NMR and IR spectroscopy, electrospray ionization mass spectrometry, and, except for 4 and 5, single-crystal X-ray diffraction analyses.