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Structure and Bonding of the Manganese(II) Phosphide Complex (t-BuPH2)(η5-Cp)Mn{μ-(t-BuPH)}2Mn(Cp)(t-BuPH2)

Stokes, Francesca A., Less, Robert J., Haywood, Joanna, Melen, Rebecca L. ORCID:, Thompson, Richard I., Wheatley, Andrew E. H., Wright, Dominic S., Johansson, Adam Johannes and Kloo, Lars 2012. Structure and Bonding of the Manganese(II) Phosphide Complex (t-BuPH2)(η5-Cp)Mn{μ-(t-BuPH)}2Mn(Cp)(t-BuPH2). Organometallics 31 (1) , pp. 23-26. 10.1021/om200381p

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Rather than achieving bis-deprotonation of the phosphine, reaction of Cp2Mn (Cp = cyclopentadienyl) with t-BuPH2 at room temperature yields monodeprotonation of half of the available phosphine in the product (t-BuPH2)(η5-Cp)Mn{μ-(t-BuPH)}2Mn(Cp)(t-BuPH2) (1). This complex comprises a Mn(II) phosphide and is a dimer in the solid state, containing a Mn2P2 diamond core. Consistent with the observation of a relatively short intermetal distance of 2.8717(4) Å in 1, DFT analysis of the full structure points to a singlet ground state stabilized by a direct Mn–Mn single bond. This is in line with the diamagnetic character of 1 and an 18-electron count at Mn.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Publisher: American Chemical Society
ISSN: 0276-7333
Last Modified: 27 Oct 2022 09:16

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