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Bridging and Conformational Control of Porphyrin Units through Non-Traditional Rigid Scaffolds

Date

2019-11

Authors

Grover, Nitika
Locke, Gemma M.
Flanagan, Keith J.
Beh, Michael H. R.
Thompson, Alison
Senge, Mathias O.

Journal Title

Journal ISSN

Volume Title

Publisher

Wiley

Abstract

Connecting two porphyrin units in a rigid linear fashion, without any undesired electron delocalization or communication between the chromophores, remains a synthetic challenge. Herein, a broad library of functionally diverse multi-porphyrin arrays that incorporate the non-traditional rigid linker groups cubane and bicyclo[1.1.1]pentane (BCP) is described. The reactions demonstrate wide substrate scope, from utilization of small phenyl to large porphyrin rings, with varying lengths and different angles. To control conformational flexibility, amide bonds were introduced between the bridgehead carbon of BCP/cubane and the porphyrin rings. Through varying the orientation of the substituents around the amide bond of cubane/BCP, different intermolecular interactions were identified

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Citation

Grover, Nitika; Locke, Gemma M.; Flanagan, Keith J.; Beh, Michael H. R.;Beh, Thompson, Alison; and Senge, Mathias O. (2019). Bridging and Conformational Control of Porphyrin Units through Non-Traditional Rigid Scaffolds. Chemistry: A European Journal, 26,11. https://doi.org/10.1002/chem.201904199

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