Selenium adducts of germa- and stanna-closo-dodecaborate: Coordination at platinum, structural studies and NMR spectroscopy

摘要

The selenium adducts of germa- and stanna-closo-dodecaborate can coordinate at platinum via the selenium atom and result in the products [Pt(dppp)(Se-TB _(11)H _(11)) _2] ~(2-) (T = Ge, Sn) (dppp = 1,3-bis(diphenylphosphino)propane). The monomeric tin compound [Pt(dppp)(Se-SnB ~(11)H _(11)) _2] ~(2-) is converted to a dimeric complex [Pt _2(dppp) _2(μ _2,μ′ _2-η ~2-Se _2SnB _(11)H _(11))]. The new compounds were characterized by NMR spectroscopy in solution (~1H, ~(11)B, ~(13)C, ~(31)P, ~(77)Se, ~(119)Sn, ~(195)Pt), elemental analysis and single crystal X-ray diffraction.