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2021•European Journal of Inorganic ChemistryRequires access

A Facially Coordinating Tris‐Benzimidazole Ligand for Nonheme Iron Enzyme Models

Parami S. Gunasekera, Preshit C. Abhyankar, Samantha N. MacMillan, David C. Lacy

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Abstract

Abstract Herein, we report a new tripodal tris‐benzimidazole ligand ( Tbim ) that structurally mimics the 3‐His coordination environment of certain nonheme mononuclear iron oxygenases. The coordination chemistry of Tbim was explored with iron(II) revealing a diverse set of coordination modes. The aerobic oxidation of biomimetic model substrate diethyl‐2‐phenylmalonate was studied using the Tbim −Fe and Fe(OTf) 2 .

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What this paper is about

Abstract Herein, we report a new tripodal tris‐benzimidazole ligand ( Tbim ) that structurally mimics the 3‐His coordination environment of certain nonheme mononuclear iron oxygenases. The coordination chemistry of Tbim was explored with iron(II) revealing a diverse set of coordination modes. The aerobic oxidation of biomimetic model substrate diethyl‐2‐phenylmalonate was studied using the Tbim −Fe and Fe(OTf) 2 .

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Available abstract

Abstract Herein, we report a new tripodal tris‐benzimidazole ligand ( Tbim ) that structurally mimics the 3‐His coordination environment of certain nonheme mononuclear iron oxygenases. The coordination chemistry of Tbim was explored with iron(II) revealing a diverse set of coordination modes. The aerobic oxidation of biomimetic model substrate diethyl‐2‐phenylmalonate was studied using the Tbim −Fe and Fe(OTf) 2 .

Key concepts: Chemistry, Benzimidazole, Tris, Ligand (biochemistry), Tripodal ligand, Coordination complex, Substrate (aquarium), Combinatorial chemistry

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