Monocationic porphyrin

Two strategies for preparation of neutral and monocationic porphyrin models were used. The presence of a spacer arm directly attached to the meso phenyl position of the porphyrins gave access to a series of dimers with different substituents on the meso position and with different geometries. 

Deda DK, Pavani C, Carita E, Baptista MS, Toma HE, Araki K (2012) Correlation of photodynamic activity and singlet oxygen quantum yields in two series of hydrophobic monocationic porphyrins. J Praphyrins Phthalocyanines 16(l) 55-63... 

A similar electron transfer mechanism has been proposed for photosensitized electron transfer catalysis of the Mukaiyama-aldol reaction of aldehydes and ketones with enol silanes [301], Photoinduced electron transfer from enol silanes to a monocationic -bridged porphyrin [302, 303] leads to the production of a... 

Wada, K., Yamamoto, M., and Setsune, J., Photosensitized electron transfer catalysis of the Mukaiyama aldol reaction by monocationic N, iSP -bridged porphyrins. Tetrahedron Lett., 40, 2773, 1999. 

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