T. Kar et K. Jug, THE REMARKABLE STABILITY OF THE LIBH2 AND HBEBH2 DIMERS - B=B DOUBLE-BOND OR MULTICENTER BONDS, Chemical physics letters, 214(6), 1993, pp. 615-620
The structure and stability of LiBH2 and HBeBH2 dimers are investigate
d using ab initio calculations with suitable basis sets. It is conclud
ed that the previous explanation of the B=B double bond cannot be supp
orted and that multi-center bonding is responsible for the structure o
f such systems.