Staggered to eclipsed conformational rearrangement of [Co2(CO)6(PPh3)2] ] in the solid state: An X-ray diffraction study at high pressure and low temperature

(Figure Presented) Under pressure: characterization of the high-pressure phase of crystalline [Co2(CO)6(PPh3) 2] has provided the first structural evidence for the transformation from a staggered to eclipsed arrangement of the equatorial carbonyl ligands in a dimeric transition-metal complex (see picture). A comparison with the same phenomenon observed at low temperature (though arrested in the very early stages) is presented.