Diselenophosphate-Induced Conversion of an Achiral [Cu20H11{S2P(OiPr)2}9] into a Chiral [Cu20H11{Se2P(OiPr)2}9] Polyhydrido Nanocluster

  • Rajendra S. Dhayal
  • , Jian Hong Liao
  • , Xiaoping Wang
  • , Yu Chiao Liu
  • , Ming His Chiang
  • , Samia Kahlal
  • , Jean Yves Saillard
  • , C. W. Liu

    Research output: Contribution to journalArticlepeer-review

    121 Scopus citations

    Abstract

    A polyhydrido copper nanocluster, [Cu20H11{Se2P(OiPr)2}9] (2H), which exhibits an intrinsically chiral inorganic core of C3 symmetry, was synthesized from achiral [Cu20H11{S2P(OiPr)2}9] (1H) of C3h symmetry by a ligand-exchange method. The structure has a distorted cuboctahedral Cu13 core, two triangular faces of which are capped along the C3 axis, one by a Cu6 cupola and the other by a single Cu atom. The Cu20 framework is further stabilized by 9 diselenophosphate and 11 hydride ligands. The number of hydride, phosphorus, and selenium resonances and their splitting patterns in multinuclear NMR spectra of 2H indicate that the chiral Cu20H11 core retains its C3 symmetry in solution. The 11 hydride ligands were located by neutron diffraction experiments and shown to be capping μ3-H and interstitial μ5-H ligands (in square-pyramidal and trigonal-bipyramidal cavities), as supported by DFT calculations on [Cu20H11(Se2PH2)9] (2H′) as a simplified model.

    Original languageEnglish
    Pages (from-to)13604-13608
    Number of pages5
    JournalAngewandte Chemie - International Edition
    Volume54
    Issue number46
    DOIs
    StatePublished - Nov 1 2015

    Keywords

    • copper
    • density functional calculations
    • hydrides
    • intrinsic chirality
    • neutron diffraction

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