Joe's recent work on the synthesis and reactivity of diberyllocene, CpBeBeCp is just out in Science magazine. This compound represents an unambiguous Be(I) species and the first stable molecule containing a Be-Be bond (the lightest metal-metal bonding combination). Joe exploited a soluble magnesium(I) reductant to reduce beryllocene, CpBeCp, in high yield, and showed that the Be(I) product can be used as a transfer agent for the CpBe unit towards other metals...