Intrinsic Role of Molecular Architectonics in Enhancing the Catalytic Activity of Lead in Glucose Hydrolysis

ACS Applied Materials & Interfaces
Bappaditya RoyThimmaiah Govindaraju

Abstract

Lewis acidity plays a key role in the catalytic activity of lead ion (PbII) in the hydrolysis of glucose in solution under harsh synthetic conditions. We report a number of structurally similar d-gluconamide amphiphiles as functional organic ligands with active an -NH center capable of coordinating PbII (viz., PbII-N-C) in basic condition to enhance the catalytic efficiency through the scheme of molecular architectonics. Amphiphiles with different hydrophobic unit form assembly-architectures with a varying second coordination sphere around the active metal ion center. As a result, the active PbII center in each architecture exhibits substantially different efficiency toward catalyzing the glucose hydrolysis under ambient temperature. The catalytic performance of the dynamic and reversible gluconamide-PbII assembly-architectures are highly dependent on their chemical environments in solution. Further, the active PbII center of gluconamide-PbII complex in the assembly architecture and dispersed states exhibits distinct outcomes with the former being a superior catalyst than the latter as well as PbII alone. The current study demonstrates the potential of molecular architectonics that relies on the hydrophobic units of designer fu...Continue Reading

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Citations

Jan 16, 2021·Chemistry, an Asian Journal·Hariharan MoorthyThimmaiah Govindaraju

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