Abstract
An air- and moisture-stable nanoscale polyhydrido copper cluster [Cu32(H)20{S2P(OiPr)2}12] (1H) was synthesized and structurally characterized. The molecular structure of 1H exhibits a hexacapped pseudo-rhombohedral core of 14 Cu atoms sandwiched between two nestlike triangular cupola fragments of (2×9) Cu atoms in an elongated triangular gyrobicupola polyhedron. The discrete Cu32 cluster is stabilized by 12 dithiophosphate ligands and a record number of 20 hydride ligands, which were found by high-resolution neutron diffraction to exhibit tri-, tetra-, and pentacoordinated hydrides in capping and interstitial modes. This result was further supported by a density functional theory investigation on the simplified model [Cu32(H)20(S2PH2)12].
Original language | English |
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Pages (from-to) | 8369-8374 |
Number of pages | 6 |
Journal | Chemistry - A European Journal |
Volume | 21 |
Issue number | 23 |
DOIs | |
State | Published - Jun 1 2015 |
Keywords
- cluster compounds
- copper
- density functional calculations
- hydrides
- neutron diffraction