Heterododecanuclear Pt6Ln6 (Ln = Nd, Yb) complexes of 4-ethynyl-2,2â²-bipyridine (HCCbpy), prepared using emissive Pt(Me3SiCCbpy)(CCbpy)2 as an alkynyl bridging âligandâ, afford sensitized near-infrared (NIR) lanthanide luminescence by Pt â Ln energy transfer from both Pt(bpy)(acetylide)2 and Pt2(dppm)2(acetylide)2 chromophores.
以
4-乙炔基-2,2'-联吡啶(HCCbpy)为
配体,使用发光性的Pt(Me3SiCCbpy)(CCbpy)2作为炔基桥连"
配体",制备了异核十二核Pt6Ln6 (Ln = Nd, Yb)配合物。通过Pt→Ln能量转移,从Pt(bpy)(
乙炔基)2和Pt2(dppm)2(
乙炔基)2发色团实现了
镧系离子的近红外发光敏化。