The approach to 4d/4f-polyphosphides

Nicholas Arleth, Michael T. Gamer, Ralf Köppe, Nikolay A. Pushkarevsky, Sergey N. Konchenko, Martin Fleischmann, Michael Bodensteiner, Manfred Scheer, Peter W. Roesky

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17 Citations (Scopus)


The first 4d/4f polyphosphides were obtained by reaction of the divalent metallocenes [Cp∗2Ln(thf)2] (Ln = Sm, Yb) with [{CpMo(CO)2}2(μ,η2:2-P2)] or [Cp∗Mo(CO)23-P3)]. Treatment of [Cp∗2Ln(thf)2] (Ln = Sm, Yb) with [{CpMo(CO)2}2(μ,η2:2-P2)] gave the 16-membered bicyclic compounds [(Cp2∗Ln)2P2(CpMo(CO)2)4] (Ln = Sm, Yb) as the major products. From the reaction involving samarocene, the cyclic P4 complex [(Cp∗2Sm)2P4(CpMo(CO)2)2] and the cyclic P5 complex [(Cp∗2Sm)3P5(CpMo(CO)2)3] were also obtained as minor products. In each reaction, the P2 unit is reduced and a rearrangement occurred. In dedicated cases, a P-P bond formation takes place, which results in a new aggregation of the central phosphorus scaffold. In the reactions of [Cp∗2Ln(thf)2] (Ln = Sm, Yb) with [Cp∗Mo(CO)2P3] a new P-P bond is formed by reductive dimerization and the 4d/4f hexaphosphides [(Cp∗2Ln)2P6(Cp∗Mo(CO)2)2] (Ln = Sm, Yb) were obtained.

Original languageEnglish
Pages (from-to)7179-7184
Number of pages6
JournalChemical Science
Issue number12
Publication statusPublished - 29 Sep 2015


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