Table 1.

Binuclear manganese and rhenium ([(CO)₂M(C₅H₄)CsC(C₅H₄)M(CO)₂](alkane)) binding energies (kcal/mol), calculated at the BP86/6–31G*, LANL2DZ level of theory

	Manganese	Rhenium
Ethane	8.0	16.4
n-Propane	12.7	19.0
n-Butane	12.1	17.2
n-Pentane	10.5	15.9