27 research outputs found
X-Ray magnetic circular dichroism on vanadium molecular derivatives
X-Ray Magnetic Circular Dichroism experiments have been
conducted on a vanadium inorganic salt and a vanadium
enamino-ketone complex. Measurements at the K edge of oxygen and
nitrogen reveal the amount of magnetic moment transferred in the
2p orbitals of the ligand atoms from the magnetic V ion.
Measurements at the L edge of vanadium show that the orbital
moment is small and that J=L+S, contrary to the expected
coupling for a 3d metal with less than five d-electrons. This
surprising inobservance of Hund's third rule emphasizes the need
for more detailed studies and calculations on such hybrid
molecules