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Ion Exchange of Protons by Coinage Metals to Give Gold and Silver Encapsulation within a Pseudo-D2d Distorted Face-Capped Pd14 Cubic Kernel: [(μ14-M)Pd22(CO)20(PEt3)8]+ (M=Au, Ag)

Authors

  • Dr. Evgueni G. Mednikov,

    Corresponding author
    1. Department of Chemistry University of Wisconsin-Madison, 1101 University Ave. Madison, WI 53706 (USA)
    • Department of Chemistry University of Wisconsin-Madison, 1101 University Ave. Madison, WI 53706 (USA)
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  • Prof. Lawrence F. Dahl

    Corresponding author
    1. Department of Chemistry University of Wisconsin-Madison, 1101 University Ave. Madison, WI 53706 (USA)
    • Department of Chemistry University of Wisconsin-Madison, 1101 University Ave. Madison, WI 53706 (USA)
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  • This research was supported by the University of Wisconsin-Madison. We thank Dr. Ilia Guzei (UW-Madison) for crystallographic advice.

Abstract

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Heart of gold (or silver): The pseudo-D2d distorted MPd14 cubic kernel of [(μ14-M)Pd22(CO)20(PEt3)8]+ cations, with M=Au (1), Ag (2), has an encapsulated M atom (see picture; yellow) coordinated to eight cubic corner (black) and six face-capping Pd atoms (gray). Compounds 1 and 2 were obtained (28–60 % yields) from two-step/one-pot reactions of a Pd10 precursor with CF3CO2H followed by coinage-metal ion exchange of protons.

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