Abstract: | The two-electron reduction of 2,2′-bipyridine with naphthaleneytterbium resulted in the formation of the ytterbium complex {Yb(μ2-bipy)(thf)2}3] (see picture) in which antiaromatic 2,2′-bipyridine dianions bridge the ytterbium atoms in a novel μ2-η2:η4 fashion. |