Journal ArticleDOI
Hybrid Organic−Inorganic Polyoxometalate Compounds: From Structural Diversity to Applications
TLDR
Polyoxometalates (POMs) are discrete anionic metaloxygen clusters which can be regarded as soluble oxide fragments which play a great role in various areas ranging from catalysis, medicine, electrochemistry, photochromism,5 to magnetism.Abstract:
Polyoxometalates (POMs) are discrete anionic metaloxygen clusters which can be regarded as soluble oxide fragments. They exhibit a great diversity of sizes, nuclearities, and shapes. They are built from the connection of {MOx} polyhedra, M being a d-block element in high oxidation state, usually VIV,V, MoVI, or WVI.1 While these species have been known for almost two centuries, they still attract much interest partly based on their large domains of applications. They play a great role in various areas ranging from catalysis,2 medicine,3 electrochemistry,4 photochromism,5 to magnetism.6 This palette of applications is intrinsically due to the combination of their added value properties (redox properties, large sizes, high negative charges, nucleophilicity...). Parallel to this domain, the organic-inorganic hybrids area has followed a similar expansion during the last 10 years. The concept of organic-inorganic hybrid materials * To whom correspondence should be addressed. E-mail: dolbecq@ chimie.uvsq.fr. Chem. Rev. 2010, 110, 6009–6048 6009read more
Citations
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Synthesis, crystal structures and two-photon absorption properties of triphenylamine cyanoacetic acid derivative and its organooxotin complexes
Xuesong Zhao,Jie Liu,Hui Wang,Yan Zou,Shengli Li,Shengyi Zhang,Hongping Zhou,Jieying Wu,Yupeng Tian,Yupeng Tian +9 more
TL;DR: Three novel organooxotin complexes synthesized by reaction of L1 with n-Bu2SnO, Ph3Sn(OH) and nBu6Sn2O have been confirmed by single-crystal X-ray diffraction analysis, suggesting that the three metal complexes have strong two-photon absorption (2PA) and large 2PA cross-sections.
Journal ArticleDOI
Multi-Tasking POM Systems
Kevin P. Sullivan,Qiushi Yin,Daniel L. Collins-Wildman,Meilin Tao,Yurii V. Geletii,Djamaladdin G. Musaev,Tianquan Lian,Craig L. Hill +7 more
TL;DR: POM-containing multi-hydrogen-bonding polymers that form gels upon exposure to select organic liquids and simultaneously catalyze hydrolytic or oxidative decontamination, as well as water oxidation catalysts that can be interfaced with light-absorbing photoelectrode materials forphotoelectrocatalytic water splitting are highlighted.
Journal ArticleDOI
Synthesis of Metforminium(2+) Decavanadates – Crystal Structures and Solid‐State Characterization
Irma Sánchez-Lombardo,Eduardo Sánchez-Lara,Aarón Pérez-Benítez,Angel Mendoza,Sylvain Bernès,Enrique González-Vergara +5 more
TL;DR: In this article, three new compounds were formed between decavanadate and diprotonated metformin (H2Metf) at different pH values and in the presence or absence of ammonium cations.
Journal ArticleDOI
Syntheses, structures and properties of two new organic–inorganic hybrid materials based on ε-Zn Keggin units {ε-PMoV8MoVI4O40−x(OH)xZn4}
TL;DR: Two novel organic-inorganic hybrids, Na[PMo(V)8Mo(VI)4O38(OH)2Zn4][pyim]2·1.5H2O [ε(pyim)2] (pyim = 2-(2-pyridyl)-imidazole) and ε2(pyIM)6, have been successfully synthesized under hydrothermal conditions by controlling the pH values.
Journal ArticleDOI
Reversible photodimerization of coumarin-modified Wells–Dawson anions
Abstract: Organo-modified photo-sensitive polyoxometalates (POMs) are a unique class of functional molecular materials. Here we show how the light-driven dimerization in organo-functionalized POMs can be achieved. To this end, the vanadium-substituted Wells–Dawson cluster [P2V3W15O62]9− was modified with a coumarin-based derivative to give the new organic–inorganic hybrid (nBu4N)4H2[C12H9O4NHC(CH2O)3P2W15V3O59]. Upon photo-irradiation, the compound undergoes photodimerization which was characterized using various spectroscopic methods including FT-IR, UV-vis, DLS (dynamic light scattering), 1H NMR, COSY NMR and ESI-MS. These results are in good agreement with the formation of dimer species. In addition, XPS and EPR analyses of the photo-irradiation product indicate that V5+ is partially reduced to V4+, while W6+ is not affected, suggesting that the coupled photo-dimerization and selective redox-switching might become possible.
References
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Omar M. Yaghi,Michael O'Keeffe,Nathan W. Ockwig,Hee K. Chae,Hee K. Chae,Mohamed Eddaoudi,Jaheon Kim +6 more
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