NDLI: Application of Solid-State Molybdenum Sulfide Clusters with an Octahedral Metal Framework to Catalysis: Ring-Opening of Tetrahydrofuran to Butyraldehyde

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Application of Solid-State Molybdenum Sulfide Clusters with an Octahedral Metal Framework to Catalysis: Ring-Opening of Tetrahydrofuran to Butyraldehyde

Content Provider	Springer Nature Link
Author	Kamiguchi, Satoshi Takeda, Kunio Kajio, Ryu Okumura, Kazu Nagashima, Sayoko Chihara, Teiji
Copyright Year	2012
Abstract	Solid-state molybdenum sulfide clusters with an octahedral metal framework, the superconducting Chevrel phases, are applied to catalysis. The cluster of copper salt, Cu$_{ x }$Mo$_{6}$S$_{8}$ (x = 2.94), stored in air is treated in a hydrogen stream above 300 °C. The activated cluster exhibits catalytic activity for the ring-opening of tetrahydrofuran, yielding butyraldehyde. Cyclic ethers such as trimethylene oxide and tetrahydropyran are also converted to the corresponding aldehydes. The cluster contains nonstoichiometric defects of sulfur atoms. Oxygen atoms are incorporated at the sulfur-deficient sites upon storage in air, but they are removed from the sites by the activation in a hydrogen stream. The resulting coordinatively unsaturated molybdenum atoms are catalytically active for the ring-opening reaction. The molybdenum atom in an intermediate oxidation state around 2+ is moderately coordinated by the oxygen of tetrahydrofuran and favorably releases the produced aldehyde. The neutral cluster Mo$_{6}$S$_{8}$, which has such sulfur-deficient sites, also catalyzes the reaction.
Starting Page	559
Ending Page	574
Page Count	16
File Format	PDF
ISSN	10407278
Journal	Journal of Cluster Science
Volume Number	24
Issue Number	2
e-ISSN	15728862
Language	English
Publisher	Springer US
Publisher Date	2012-11-25
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Molybdenum sulfide cluster Chevrel phase Heterogeneous catalysis Ring-opening reaction Intermediate oxidation state Catalysis Inorganic Chemistry Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Biochemistry Condensed Matter Physics Materials Science

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