Synthetically Tunable White-, Green-, and Yellow-Green-Light Emission in Dual-Luminescent Gold(I) Complexes Bearing a Diphenylamino-2,7-fluorenyl Moiety
作者:Joseph J. Mihaly、Steven M. Wolf、Alexis T. Phillips、Sokhalita Mam、Zheng Yung、Joy E. Haley、Matthias Zeller、Kimberly de La Harpe、Ethan Holt、Tod A. Grusenmeyer、Stephanie Collins、Thomas G. Gray
DOI:10.1021/acs.inorgchem.1c02405
日期:2022.1.24
The syntheses and photophysical characterization of five new gold(I) complexes bearing diphenylamine-substituted fluorenyl moieties are reported; four are characterized by X-ray diffraction crystallography. Ancillary ligation on gold(I) is provided by organophosphine and N-heterocyclic carbene ligands. Two complexes, Au-DPA0 and Au-DPA1, are σ-aryls, two, Au-ADPA0 and Au-ADPA1, are σ-alkynyls, and
报道了五种带有二苯胺取代芴基的新型金(I)配合物的合成和光物理表征;四是通过X射线衍射晶体学来表征的。金 (I) 上的辅助连接由有机膦和 N-杂环卡宾配体提供。两个配合物,Au-DPA0和Au-DPA1,是 σ-芳基,两个,Au-ADPA0和Au-ADPA1,是 σ-炔基,一个,Au-TDPA1,是通过碳结合的 σ-三唑基。所有配合物都显示出振动结构的吸收和发光带,这些带可归因于位于二苯胺取代的芴基 π 系统上的 π-π* 跃迁。所有五种发色团的激发态动力学由辅助配体的选择和二苯胺取代的芴基部分的 σ 连接决定。所有这些生色团在 298 K 的甲苯溶液中都是双发光的。芳基衍生物Au-ADPA0和Au-DPA1的发光呈绿色。含有膦辅助配体Au-ADPA0的炔基衍生物是白光发射体,而含有 N-杂环卡宾辅助配体Au-ADPA1的炔基衍生物, 是黄光发射器。来自三唑基连接的发色团Au-TDPA1的