The interaction of cationic lanthanide complexes [Ln(porp)(H2O)3]+ (Ln = Er or Yb; porp = porphyrinate) with sodium (cyclopentadienyl)tris(diethylphosphito)cobaltate (NaLOEt) gives the neutral 3dâ4f bi-metallic porphyrinate complexes, [(LOEt)Ln(porp)]. X-Ray structural analyses reveal that these complexes are seven-coordinate with the three oxygen atoms of the O3-tripodal ligand, LOEt, coordinated to the lanthanide metal behaving as a 6-electron donor. Photophysical measurements show that the porphyrinate ligand behaves as a sensitizer by absorbing visible light to excite the Ln(III) metal ions, producing near-infrared emission.
阳离子
镧系元素配合物 [Ln(porp)(
H2O)3]+(Ln = Er 或 Yb;porp =
卟啉酸盐)与(
环戊二烯基)三(二
乙基磷酸)
钴酸
钠 (NaLOEt) 相互作用,得到中性 3d−4f bi-
金属
卟啉配合物,[(LOEt)Ln(porp)]。 X 射线结构分析表明,这些配合物与 O3-三足
配体 LOEt 的三个氧原子进行七配位,与作为 6 电子供体的
镧系
金属配位。光物理测量表明,
卟啉配体通过吸收可见光激发 Ln(III)
金属离子,产生近红外发射,从而起到敏化剂的作用。