Theoretical study of the bonding in [(C5Me5)2Sm]2[μ-η2η:η2X2](X = Bi, N and NH)

The electronic and geometrical structures Of [(C5Me5)(2)Sm](2)[mu-eta(2) :eta(2)X(2)] (X = Bi, N and NH), in which the entity X-2 is solely bonded to Samarium atom, are analyzed and compared by use of molecular orbital calculations. (C) 2004 Elsevier B.V. All rights reserved.