A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov str. 28, 119991 Moscow (Russia).
Chemistry. 2015 Sep 14;21(38):13176-80. doi: 10.1002/chem.201502085.
According to spectroscopic (NMR, IR, UV/Vis) study, the interaction of pentaphosphaferrocene [CpFe(η(5) -P5 )] with trimeric copper pyrazolate [(Cu{3,5-(CF3 )2 Pz})3 ] yields a new compound that is astonishingly stable in solution. Single-crystal X-ray analysis reveals unprecedented structural changes in the interacting molecules and the unique type of coordination [CpFe(μ3 -η(5) :η(2) ,η(2) -P5 ){Cu(3,5-(CF3 )2 Pz)}3 ]. As a result of the 90° macrocycle folding, the copper atoms are able to behave both as a Lewis acid and as a Lewis base in the interaction with the cyclo-P5 ligand.
根据光谱学（NMR、IR、UV/Vis）研究，五磷杂环戊二烯基二茂铁[CpFe(η(5)-P5)]与三聚铜吡唑酸盐[(Cu{3,5-(CF3)2 Pz})3]相互作用生成一种在溶液中惊人稳定的新化合物。单晶 X 射线分析揭示了相互作用分子中前所未有的结构变化以及独特的配位类型[CpFe(μ3-η(5)：η(2)，η(2)-P5){Cu(3,5-(CF3)2 Pz)}3]。由于 90°大环折叠，铜原子在与环-P5 配体的相互作用中能够同时充当路易斯酸和路易斯碱。
