Maximum entropy method and multipole analysis of the bonding in sodium and vanadium metals

The nature of bonding and the charge distribution in sodium and vanadium metals have been analysed using the reported x-ray data of these metals. The maximum entropy method (MEM) and multipole analysis have been used. The bonding in these metals has been elucidated and analysed. The mid-bond densities in sodium and vanadium are found to be 0.014 and 0.723 electron angstrom(-3) respectively, giving an indication of the strength of the bonds in these materials. From the multipole analysis, the sodium atom is found to contract more than the vanadium atom.