MONOCYCLIC, DICYCLIC, AND TRICYCLIC CHELATE CHROMIUM ARENEDIFLUOROPHOSPHITE COMPLEXES

Difluorophosphites are shown to be able to replace all CO groups in arenetricarbonylchromium complexes under UV irradiation. New chromium chelates with polydentate arenedifluorophosphite ligands containing one, two, and three chelate cycles are reported. These are compared with analogous nonchelate phenyldifluorophosphite complexes. The structures of the complexes synthesized are proven by IR and 1H, 19F and 31P NMR spectra and mass-spectrometry. © 1979.