π-Stacked columnar assembly of a homoleptic 1,1′,2,2′-tetraphosphaferrocene derivative

Abstract

The reaction of 1-trimethyltin-3,4,5-triphenyl-1,2-diphosphacyclopenta-2,4-diene with FeBr 2 lead to formation of homoleptic 1,1',2,2'-tetraphosphaferrocene derivative [Fe(η 5 -Ph 3 P 2 C 3 ) 2 ] (1). The structure of 3,3',4,4',5,5'-hexaphenyl-1,1',2,2'-tetraphosphaferrocene (1) has been studied experimentally by single crystal and powder X-ray diffraction analysis, solid-state electrochemistry and Mössbauer spectroscopy down to liquid helium temperature.