A Catalysis-Driven Dual Molecular Motor DOI Creative Commons
Peng-Lai Wang, Enzo Olivieri, Stefan Borsley

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

We report on a head-to-tail dual molecular motor consisting of two (identical) units whose pyrrole-2-carboxylic rings are turned in contra-rotary (i.e., disrotatory) fashion about common phenyl-2,5-dicarboxylic acid stator. The motors directionally rotate via information ratchet mechanisms, which the hydration carbodiimide (fuel) to form urea (waste) is catalyzed through chemomechanical cycle unit, resulting directional rotation biaryl C–N bond. arrangement produces coaxial contra-rotation end groups while central phenyl ring axis remains dynamically unbiased. electron-rich nature stator contributes rotary catalysis by dual-motor (and therefore itself) being ∼7× faster than parent 1-phenylpyrrole-2,2-dicarboxylic single-motor when operated under identical conditions, and 90× using originally reported reaction conditions. Under batch-fueled operation all fuel present at start operation), rotates an initial rate 0.43 rotations per minute (rpm). Chemostating concentration syringe pump addition produced sustained repetitive 0.24 rpm for period 100 min. demonstration chemically fueled continuous time scale 2–4 min significantly advances chemistry mechanics artificial catalysis-driven machinery.

Language: Английский

A Catalysis-Driven Dual Molecular Motor DOI Creative Commons
Peng-Lai Wang, Enzo Olivieri, Stefan Borsley

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

We report on a head-to-tail dual molecular motor consisting of two (identical) units whose pyrrole-2-carboxylic rings are turned in contra-rotary (i.e., disrotatory) fashion about common phenyl-2,5-dicarboxylic acid stator. The motors directionally rotate via information ratchet mechanisms, which the hydration carbodiimide (fuel) to form urea (waste) is catalyzed through chemomechanical cycle unit, resulting directional rotation biaryl C–N bond. arrangement produces coaxial contra-rotation end groups while central phenyl ring axis remains dynamically unbiased. electron-rich nature stator contributes rotary catalysis by dual-motor (and therefore itself) being ∼7× faster than parent 1-phenylpyrrole-2,2-dicarboxylic single-motor when operated under identical conditions, and 90× using originally reported reaction conditions. Under batch-fueled operation all fuel present at start operation), rotates an initial rate 0.43 rotations per minute (rpm). Chemostating concentration syringe pump addition produced sustained repetitive 0.24 rpm for period 100 min. demonstration chemically fueled continuous time scale 2–4 min significantly advances chemistry mechanics artificial catalysis-driven machinery.

Language: Английский

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