Using the formula including charge transfers on sites, the binding energy c
all be described by the sum of the short-range energy, the on-site charge t
ransfer energy and the long-range electrostatic energy. For discussing the
'ionic' contributions on the binding energy, Madelung energies are calculat
ed for the complex compounds of 3d transition metal (M) and metalloid (B,Si
) of MB2, MSi2 and MSi and are compared to the heat of formation. (C) 1999
Elsevier Science B.V. All rights reserved.