Electronic structure of transition-metal borides with the AlB2 structureJournal of the American Chemical Society (1986)
A study of the electronic structure of solid metal bordies with the AlB2 structure type is presented. The interaction of the orbitals of the transition metal with those of a planar, graphite-like net of boron atoms and the interactions with those of other metals are both important in influencing the properties of the species. It is suggested that the experimentally observed variation in the heat of formation of these species is crucially dependent upon the extent of occupation of the metal-boron orbital set. In addition it appears that the puckering of the boron net in ReB2 and RuB2 structures is due not to the obvious effects of charge transfer but to strong metal-metal replusion perpendicular to the nonmetal sheets. In AlB2 itself the strongest interactions are between the boron atoms which attain a graphite-like electron count with its associated structural stability.
Citation InformationJeremy K. Burdett, Enric Canadell and Gordon J. Miller. "Electronic structure of transition-metal borides with the AlB2 structure" Journal of the American Chemical Society Vol. 108 Iss. 21 (1986) p. 6561 - 6568
Available at: http://works.bepress.com/gordon-miller/9/