Metallacycles in carbon supports

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Science  04 May 2018:
Vol. 360, Issue 6388, pp. 504-505
DOI: 10.1126/science.360.6388.504-f

Metallacycles are large organometallic rings in which metal complexes coordinate ligand assembly. The assembly process is dynamic, so, although convenient, these compounds can reassemble into larger, unwanted aggregates. Chen et al. found that a metallacycle formed from an acceptor ligand bearing platinum end groups and a donor bearing a porphyrin group was more stable when assembled within a mesoporous carbon material. The dispersion of the metallacycle was evidenced by a sixfold increase in singlet oxygen production for the porphyrin group compared with the free metallacycle in solution.

J. Am. Chem. Soc. 10.1021/jacs.8b02386 (2018).

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