Photosynthetica 2018, 56(1):67-74 | DOI: 10.1007/s11099-018-0783-y

Synthesis and characterization of a cobalt(II) tetrakis(3-fluorophenyl) porphyrin with a built-in 4-vinylphenyl surface attachment moiety

D. Khusnutdinova1, M. Flores1, A. M. Beiler1, G. F. Moore1,*
1 School of Molecular Sciences and the Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, USA

Metalloporphyrins serve important roles in biology and as components in emerging technological assemblies for energy conversion. In this report, we describe the synthesis and characterization of a novel cobalt(II) 5,10,15,20-tetrakis (3-fluorophenyl)porphyrin bearing a 4-vinylphenyl surface attachment group at a beta position on the macrocycle. Electrochemical measurements show the 3-fluorophenyl groups at the meso positions of the porphyrin perturb the reduction potentials of the complex to more positive values as compared to non-fluorinated analogs, thus allowing access to reduced cobalt porphyrin species at significantly less negative applied bias potentials. The complex, cobalt(II) 5,10,15,20-tetrakis(3-fluorophenyl)-2-(4-vinylphenyl)porphyrin, is abbreviated in this article as Gov-1 in honor of Govindjee for his pioneering investigations in the role of fluorine as a promoter of novel protein-substrate interactions and the inspirational role he continues to have in encouraging young investigators in the areas of natural and artificial photosynthesis.

Additional key words: artificial photosynthesis; fluorine; porphyrins; surface chemistry

Received: June 30, 2017; Accepted: September 5, 2017; Published: March 1, 2018  Show citation

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Khusnutdinova, D., Flores, M., Beiler, A.M., & Moore, G.F. (2018). Synthesis and characterization of a cobalt(II) tetrakis(3-fluorophenyl) porphyrin with a built-in 4-vinylphenyl surface attachment moiety. Photosynthetica56(SPECIAL ISSUE), 67-74. doi: 10.1007/s11099-018-0783-y
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