4.7 Article

Crystal Structure of the PdAu24(SR)180 Superatom

Journal

INORGANIC CHEMISTRY
Volume 55, Issue 3, Pages 999-1001

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.5b02106

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Funding

  1. Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-ACO2-05CH11231]

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The single-crystal X-ray structure of Pd-doped Au-25(SR)(18) was solved. The crystal structure reveals that in PdAu24(SR)(18), the Pd atom is localized only to the centroid of the Au-25(SR)(18) cluster. This single-crystal X-ray structure shows that PdAu24(SR)(18)(0) is well conceptualized with the superatom theory. The PdAu24(SR)(18)(+1) charge state is isoelectronic with Au-25(SR)(18)(+1) as determined by a first order Jahn-Teller effect of similar magnitude and by electrochemical comparison. The previously reported increased stability of PdAu24(SR)(18) can be rationalized in terms of Pd-Au bonds that are shorter than the Au-Au bonds in Au-25(SR)(18).

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