Copper seamed dimeric metal organic pyrogallolarene capsules have been synthesized and engineered into coordination polymer chains, either by direct coordination or with additional bridging ligands. The formation of this copper capsule also demonstrates selective formation of either hexameric or dimeric metal-organic capsules.
Fowler, D. A., Mossine, A. V., Beavers, C. M., Teat, S. J., Dalgarno, S. J., & Atwood, J. L. (2011). Coordination Polymer Chains of Dimeric Pyrogallolarene Capsules. Journal of the American Chemical Society, 133(29), 11069-11071. https://doi.org/10.1021/ja203651v