Dicarbonyl{[(E,E)-(2,3,4,5-η)-6-methoxy-6-oxo-2,4-hexadienyl]triphenylphosphonium}(triphenylphosphane-κP)iron(1+) hexafluoridophosphate

Abstract

In the title compound, [Fe(C25H24O2P)(C18H15P)(CO)2]PF6, the Fe atom adopts a square-based pyramidal coordination geometry with the carbonyl groups and the two C=C bonds of the diene defining the basal sites and the phosphane ligand the apical position. The diene ligand has an E,E geometry, with the phosphonium fragment pointed away from the Fe atom. The crystal structure displays C—H...F and C—H...O hydrogen bonding. The PF6− anion is rotationally disordered over four orientations.

Keywords

• crystal structure
• 2E,4E-dienylphosphonium
• (pentadienyl)iron cation
• Fe(CO)2PPh3