Diplatinum alkynyl chromophores as sensitisers for lanthanide luminescence in Pt2Ln2 and Pt2Ln4 (Ln = Eu, Nd, Yb) arrays with acetylide-functionalized bipyridine/phenanthroline†
Abstract
Incorporation of diplatinum complex Pt2(μ-dppm)2(bpyC
C)4 or Pt2(μ-dppm)2(phenC
C)4 with Ln(hfac)3(H2O)2 (Ln = Nd, Eu, Yb) gave a series of Pt2Ln2 and Pt2Ln4 bimetallic arrays, in which the excitation of d(Pt) →
π*(R–C
C) MLCT absorption induces sensitisation of lanthanide luminescence through efficient d → f energy transfer from PtII alkynyl
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