arachno-[(CO)H(PMe3)2IrB8H12] 以
neat (no solvent) 为溶剂,
以0.5%的产率得到4,5'-dicarbonyl-4,4,5,5'-tetrakis(trimethylphosphine)-σ[Ir(5')B(6)]-nido-5'-iridaoctaborano[3',8':1,2]-closo-4-iridadodecaborane
参考文献:
名称:
Macropolyhedral boron-containing cluster chemistry. Isolation and characterisation of the eighteen-vertex nido-5′-iridaoctaborano[3′,8′ : 1′,2]-closo-4-iridadodecaborane, [(CO)(PMe3)2IrB16H14Ir(CO)(PMe3)2]
摘要:
The novel eighteen-vertex macropolyhedral diiridaborane [(CO)(PMe(3))(2)IrB16H14Ir(CO)(PMe(3))(2)] has been isolated in low yield from the products of thermolysis of the nine-vertex. arachno-monoiridaborane [(CO)(PMe(3))(2)HIrB8H12], and examined by single-crystal X-ray diffraction analysis, NMR spectroscopy and mass spectrometry. The macropolyhedral framework consists pf a close-type twelve-vertex {IrB11} subcluster and a nido-type eight-vertex {IrB7} subcluster fused with two boron atoms in common; In addition there is an iridium-boron two-electron two-centre intercluster cross-linkage that is suprafacial to the open nido subcluster. The results are briefly discussed in terms of bonding schemes among individual subclusters.