首页> 外文期刊>Chemistry: A European journal >[Cu-32(H)(20){S2P(OiPr)(2)}(12)]: The Largest Number of Hydrides Recorded in a Molecular Nanocluster by Neutron Diffraction
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[Cu-32(H)(20){S2P(OiPr)(2)}(12)]: The Largest Number of Hydrides Recorded in a Molecular Nanocluster by Neutron Diffraction

机译:[Cu-32(H)(20){S2P(OiPr)(2)}(12)]:通过中子衍射记录在分子纳米团簇中的氢化物数量最多

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摘要

An air- and moisture-stable nanoscale polyhydrido copper cluster [Cu-32(H)(20){S2P(OiPr)(2)}(12)] (1(H)) was synthesized and structurally characterized. The molecular structure of 1(H) exhibits a hexacapped pseudo-rhombohedral core of 14 Cu atoms sandwiched between two nestlike triangular cupola fragments of (2x9) Cu atoms in an elongated triangular gyrobicupola polyhedron. The discrete Cu-32 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 [Cu-32(H)(20)(S2PH2)(12)].
机译:合成了一种空气和水分稳定的纳米级多氢铜簇[Cu-32(H)(20){S2P(OiPr)(2)}(12)](1(H)),并对其结构进行了表征。 1(H)的分子结构展示了一个14个Cu原子的六冠伪菱形体核心,它夹在一个细长的三角形回旋管多面体的(2x9)Cu原子的两个巢状三角形冲天炉碎片之间。离散的Cu-32团簇由12个二硫代磷酸酯配体和创纪录数量的20个氢化物配体稳定,通过高分辨率中子衍射发现,它们在封端和填隙模式下表现出三配位,四配位和五配位氢化物。简化模型[Cu-32(H)(20)(S2PH2)(12)]的密度泛函理论研究进一步支持了该结果。

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