No abstract

SzmniavyThe first observation of a parent negative ion in the mass spectra of metal carbonyls is reported for v (CO) 6 .A SIGNIFICANT feature in the negative-ion mass spectra of metal carbonyls is the absence of the parent-molecule i0n.l-3This ;s consistent with the view,* based on calculations for Ni(CO),5 and Cr(C0)6,6 that the captured electron would have to be placed in an anti-bonding molecular orbital.The case of the paramagnetic hexacarbonylvanadium is dift'er jnt ; the addition of an electron to the molecule to give the anion V(C0); (which has been observed in solution) is expected since molecular orbital calculations indicate that the added electron would enter a bonding molecular orbital.'We report the observation of gaseous V(C0); formed by electron capture from V(CO),, the first observation of a parent negative ion in metal carbonyls.The complete negative ion mass spectrum of V(CO), is given in the Table . The most intense negative ion corresponds to loss of one ligand from the parent molecule; also

No abstract

No abstract

No abstract