Synthesis and reactivity of tungsten(II) carbonyl η2-nitrile complexes: crystal structure of tetrafluoroterephthalonitrile as a four-electron donor ligand
Abstract
Treatment of a tungsten(II) carbonyl fluoride complex containing a tridentate monoanionic [C,N,N′] ligand with either pentafluorobenzonitrile or tetrafluoroterephthalonitrile affords tungsten(II)η2-nitrile complexes in which the nitrile ligand functions as a four-electron donor.