Copper

Abstract

In copper(I) chemistry, ‘CuH in a bottle’ is noteworthy, as is a rare example of CO and perchlorate in the same coordination sphere. Geochemists will be interested in the observation of oxygen exchange between sulfate and non-coordinated water in CuSO₄·5H₂O. In copper(II) chemistry, the complex role of phosphate as a bridging ligand—including an example of μ₃-η⁴-PO₄³⁻—is becoming apparent, and further examples of Cu^II-C(sp³) bonds have been identified.