Complexes of Polythia[n](1,1′)ferrocenophanes with Pd(BF4)2. A Fe–Pd Dative Bond Formation Controlled by the Coordination of the Pd(II) Atom to the Sulfur Atoms of the Thiamacrocycle

Tetrathia- and trithia[n]ferrocenophanes formed 1:1 complexes with Pd(BF4)2. The spectral data proved the presence of a Fe–Pd bonding interaction for the Pd(II) complexes of 1,5,9-trithia[9]-and 1,4,7-trithia[7](1,1′)ferrocenophanes.