Structural studies of heptanuclear cobalt complexes and larger oligomers based on heptanuclear fragments
Abstract
The structures of three heptanuclear cobalt cages supported by carboxylates and 6-chloro-2-pyridonate (chp) have been determined. The metal cores can be derived from a square-based pyramid, capped on one edge of the square base and on the neighbouring triangular face of the pyramid. Use of phthalate in a similar reaction results in a tridecanuclear cage which resembles a dimer of the heptanuclear cages, linked through the dicarboxylate