Hybrid Inorganic‐Organic Photochromic Film Based on Polymolybdate and Isoniazid Dimer: Synthesis, Structure, and Photochromism

A photochromic film based on an inorganic‐organic hybrid, Na3H(H2O)2[β‐Mo8O26](C12H8N4O2)2·19H2O (1), is developed for the first time. Compound 1 was in situ synthesized and structurally characterized by single‐crystal X‐ray crystallography, and a dimerization reaction of isoniazid can be directly o...

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Bibliographic Details
Published in:European journal of inorganic chemistry 2020-11, Vol.2020 (42), p.4002-4006
Main Authors: Wang, Yang, Huang, Xinjun, Zhao, Qin, Shi, Litong, Sun, Xiaodong, Wu, Shuyao, Jiang, Yuchun, Song, Xi‐Ming, Zhang, Yu, Ma, Tianyi
Format: Article
Language:English
Subjects:
Crystal structure
Crystallography
Dimerization
Dimers
Electromagnetic absorption
Functional materials
Inorganic chemistry
Isoniazid dimers
Molecular structure
Organic‐inorganic hybrid composites
Photochromism
Polymolybdates
Polyoxometallates
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Summary:A photochromic film based on an inorganic‐organic hybrid, Na3H(H2O)2[β‐Mo8O26](C12H8N4O2)2·19H2O (1), is developed for the first time. Compound 1 was in situ synthesized and structurally characterized by single‐crystal X‐ray crystallography, and a dimerization reaction of isoniazid can be directly observed during the synthesis process. Together with the polymolybdate, the azo bond in the dimerization product N,N'‐bis(isonicotinamide) hydrazide showed photochromic properties under illumination, widening the light absorption range of polymolybdate. Irradiation experiments of the prepared film indicated an excellent waterproof and recyclable layered material, which demonstrated a distinctive way of extending the application of polyoxometalate based hybrid inorganic‐organic functional materials in the field of photocatalysis. A novel inorganic‐organic hybrid Na3H(H2O)2[β‐Mo8O26](C12H8N4O2)2·19H2O was synthesized via one‐pot method and was utilized as the membrane material in photochromism. The POM‐azo combined material showed excellent writing/erasing properties under illumination, demonstrating a distinctive way of extending the application of POM based hybrid inorganic‐organic functional materials in photochromism.
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.202000709