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Updated: Aug 18, 2026

HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin
Published on: July 23, 2016
The first supramolecular orthovanadate receptor -- structural mimics of vanadium haloperoxidase
Xiao-An Zhang1, Markus Meuwly, Wolf-D Woggon
1Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland.
Abstract:
Tris(2-guanidinium-ethyl)amine (1) was prepared as a supramolecular receptor of hydrogen orthovanadate (HVO(4)(2-)) to mimic the active site of vanadium haloperoxidase (V-HPO). Both (1)H and (51)V NMR titration indicated 1:1 complex (5) formation between (1) with HVO(4)(2-) with a binding constant of 1.1 x 10(3) M(-1). Similar as V-HPO, a UV band at 307 nm was observed upon binding of HVO(4)(2-) to (1). According to DFT calculations UV transitions >300 nm observed for both the enzyme and its mimic are due to V-N interactions.
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