<sup>1</sup>O<sub>2</sub> Generating Luminescent Lanthanide Complexes with 1,8-Naphthalimide-Based Sensitizers
作者:Katherine R. Johnson、Ana de Bettencourt-Dias
DOI:10.1021/acs.inorgchem.9b02431
日期:2019.10.7
Lanthanide ion (LnIII) complexes with two new 1,8-naphthalimide-based ligands, Nap-dpe and Nap-cbx, were isolated, and their photophysical properties were explored. Upon excitation at 335 nm, Nap-dpe and Nap-cbx sensitize visible and near-infrared emitting LnIII ions (LnIII = EuIII, NdIII, and YbIII) and generate singlet oxygen (1O2). The quantum yields of EuIII luminescence for [Eu(Nap-cbx)3]3+ and
分离了具有两个新的基于1,8-萘二甲酰亚胺的配体Nap-dpe和Nap-cbx的镧系元素离子(Ln III),并对其光物理性质进行了研究。在335 nm激发后,Nap-dpe和Nap-cbx会敏化可见和近红外发射的Ln III离子(Ln III = Eu III,Nd III和Yb III)并产生单线态氧(1 O 2)。[Eu(Nap-cbx)3 ] 3+和[Eu(Nap-dpe)的Eu III发光的量子产率)3 ] 3+分别为16.7%和8.3%,1 O 2生成效率分别为41%和59%。NIR发射复合物[Ln(Nap-dpe)3 ] 3+的1 O 2生成效率分别为[Ln(Nap-cbx)3 ] 3+的效率为(Ln III = Nd III和Yb III分别为64%和61%。在无氧环境中,[Eu(Nap-cbx)3的Eu III发光的量子产率] 3+和[Eu(Nap-dpe)3 ] 3+分别增加到20%和18%。