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The coordination chemistry of the zinc ion in the active site of alcohol dehydrogenase has been studied by the ab initio Hartree-Fock method. Geometry optimisations were performed using analytical gradients and basis sets of double zeta quality. Correlation effects were included at the MP2 level.
1 kwi 2010 · Different zinc complexes postulated during the LADH-catalyzed dehydrogenation of alcohol: (a) “Classical” mechanism (e.g. [63]); (b) molecule of water takes part in the reaction [53]; (c) Glu-67 or Glu-68 can be intermittently bonded to the zinc [57], [58].
2 dni temu · Rechargeable aqueous zinc-sulfur batteries (AZSBs) are gaining attention due to their high energy density, ultra-stable discharge platform, and safety. However, poor liquid/solid reaction processes at the anode and cathode reduce reaction kinetics, and the severe dissolution of polysulfides causes shuttle effects during discharge/charge cycles ...
The reaction involves the oxidation of alcohol to aldehyde and the resulting aldehyde then reacts with another molecule of alcohol to form the hemiacetal, which on further oxidation delivers the ester product. The reaction is environmentally benign with high atom economy without the need for any activating agent.
15 paź 2024 · Sulfur as a cathode material is a low-cost option along with showing an exceptional specific capacity; hence aqueous zinc-sulfur batteries (AZSBs) are investigated in recent years. This review begins with a comprehensive understanding of the fundamental sulfur redox reaction mechanism in AZSBs.
15 lut 2024 · 1. Introduction. Reduction is a very common reaction in organic synthesis. Typically used metal reducing agents include: Li, Na, K, Zn, Mg, Fe, Al, Sn, Pt, PtO 2, Pd, Pd (OH) 2, Raney® nickel, metal hydride and so on.
20 gru 2023 · Here we report two practical and robust strategies based on zinc-mediated one-pot reductive coupling of alkyl halides and (deuterated) alcohols utilizing ArSO 2 SNa as crucial sulfur shuttle in absence of thiols. The approaches feature nickel and base-free conditions, broad substrate scope, and late-stage molecule modification, providing a wide ...
