Journal
CHINESE CHEMICAL LETTERS
Volume 34, Issue 3, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2022.03.088
Keywords
Thiacalix[4]arene; Substituted polyoxometalates; Bimetallic nanocluster; Crystal structure; Glucose oxidation
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Two new Ni8Mo8 bimetallic coordination clusters, Ni8PMo8 and Ni8Mo8, were synthesized and characterized. These two clusters can be directly loaded on carbon paper and used as working electrodes for glucose detection and oxidation, showing distinguishable performances. This work provides a better understanding of the structure-property relationships in using substituted polyoxometalates for electrochemical applications and is helpful for building functional materials based on calixarenes or polyoxometalates.
Available online two new Ni8Mo8 bimetallic coordination clusters, [Ni4(TC4A)]2[(Mo5 VMo3 VIO24) (PO4)] ( + Solvent) (Ni8PMo8, H4TC4A = p-tert-butylthiacalix[4]arene) and [Ni4(TC4A)]2[(Mo5 VMo3 VIO24) (OH)(CO3)] ( + Solvent) (Ni8Mo8), were synthesized by solvothermal method and structurally characterized by single-crystal X-ray diffraction, powder X-ray diffraction, FT-IR spectroscopy, and TGA experiments, re-spectively. The usage of H3PMo12O40 as source for Ni8PMo8 resulted a sandwich like structure built from two Ni4-thiacalix[4]arene units and a Mo8 polyoxometalate with inner spaces of PO4 3 -. Ni8Mo8 with the similar structure to that of Ni8PMo8 is from H2MoO4 starting reagent with OH- and CO3 2 - anions encap-sulated in the center. The two clusters can be directly loaded on carbon paper and utilized as working electrodes which showed distinguishable performances for glucose detection and oxidation. This work provides a better understanding of the structure-property relationships in using substituted polyoxomet-alates for electrochemical applications and is helpful for building calixarene-based or polyoxometalate-based functional materials.(c) 2023 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
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