Reaction Pathway to the Only Open-Shell Transition-Metal Keggin Ion without Organic Ligation: Reaction Pathway to the Only Open-Shell Transition-Metal Keggin Ion without Organic Ligation
Journal Article
·
· European Journal of Inorganic Chemistry
- Chinese Academy of Sciences (CAS), Shanghai (China). Fujian Institute of Research on the Structure of Matter, Key Laboratory of Optoelectronic Materials Chemistry and Physics; DOE/OSTI
- Oregon State Univ., Corvallis, OR (United States)
- Chinese Academy of Sciences (CAS), Shanghai (China). Fujian Institute of Research on the Structure of Matter, Key Laboratory of Optoelectronic Materials Chemistry and Physics
Aqueous metal-oxo clusters without organic ligands (including polyoxometalates and group 13 polycations) are useful for energy, environmental and biomolecular applications. While ligands stabilize clusters of different elements, such as open-shell transition metals, they inhibit reactivity and solubility. Therefore a grand challenge is to conceive and execute synthetic strategies to isolate metal-oxo clusters of any composition, without ligation. Here we crystallize and structurally characterize a Cr3+ dodecamer Keggin ion without organic ligation. Detailed characterization of its formation leads to understanding its reaction pathway, which may translate to isolation of other open-shell transition metal-oxo clusters. We employed electrospray ionization mass spectrometry, Raman spectroscopy and X-ray scattering (small-angle and total) to identify important reaction intermediates and processes. The aqueous synthesis presented here is simple to implement and scalable, producing pure phase materials in gram quantities.
- Research Organization:
- Oregon State University, Corvallis, OR (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0010802
- OSTI ID:
- 1611516
- Alternate ID(s):
- OSTI ID: 1479159
- Journal Information:
- European Journal of Inorganic Chemistry, Journal Name: European Journal of Inorganic Chemistry Journal Issue: 42 Vol. 2018; ISSN 1434-1948
- Publisher:
- ChemPubSoc EuropeCopyright Statement
- Country of Publication:
- United States
- Language:
- English
The role of titanium-oxo clusters in the sulfate process for TiO 2 production
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journal | January 2019 |
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