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Two New Cluster Ions, Ga[GaH<sub>3</sub>]<sub>4</sub><sup>5–</sup> with a Neopentane Structure in Rb<sub>8</sub>Ga<sub>5</sub>H<sub>15</sub> and [GaH<sub>2</sub>]<sub><i>n</i></sub><sup><i>n</i>–</sup> with a Polyethylene Structure in Rb<sub><i>n</i></sub>(GaH<sub>2</sub>)<sub><i>n</i></sub>, Repre

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The first examples of a new class of gallium hydride clusters with direct Ga–Ga bonds and common hydrocarbon structures are reported. Neutron powder diffraction was used to find a Ga[GaH3]45– cluster ion with a neopentane structure in a novel cubic structure type of Rb8Ga5H15. Another cluster ion with a polyethylene structure, [GaH2]nn–, was found in a second novel (RbGaH2)n hydride. These hydrocarbon-like clusters in gallium hydride materials have significant implications for the discovery of hydrides for hydrogen storage as well as for interesting electronic properties.

创建时间:
2011-09-21
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