中南民族大学学报（自然科学版）2025，Vol.44Issue(6)：763-777,15.DOI:10.20056/j.cnki.ZNMDZK.20250604
基于杂原子策略热激活延迟荧光Z型链状配合物的制备、结构及光电性能研究
Preparation,structure and photoelectric properties of thermally activated fluorescence-delayed Z-type chain complexes based on heteroatom strategy
摘要
Abstract
Heteroatom strategy is frequently employed in the wavelength modulation and synthesis of thermally activated fluorescence-delayed materials.By introducing heteroatoms(S,O and N)with varying electronegativity,the electron cloud distribution of both the primary and auxiliary ligand was modified,thereby the highest occupied molecular orbital(HOMO)and lowest unoccupied molecular orbital(LUMO)energy levels of the heavy metal complexes were improved.Three ligands(Stz,Otz and Ntz)and their corresponding complexes―S1^N,S2^N,S3^N,O1^N,O2^N,O3^N,N1^N,N2^N and N3^N were prepared by one-pot solvothermal method and characterized by FT-IR,NMR(1H,13C,19F,31P),elemental analysis(EA),mass spectrometry(MS),X-ray photoelectron spectroscopy(XPS),thermogravimetric analysis(TGA),ultraviolet-visible(UV-Vis)spectroscopy,photoluminescence(PL)and electrochemical methods.Single crystal structural analysis revealed that the metal complexes exhibited a long-range ordered Z-type chain structure.The maximum photoluminescence(PL λmax em)was observed in the range of 470-564 nm,while the UV-absorption(λabs)occurred between 229-245 nm,indicating excellent luminescent performance.Particularly,the introduction of heteroatom O or N lowered the LUMO energy levels of the complexes,facilitating a blue shift of the luminescence wavelength,which was consistent with the electrochemical characterization results.Experimental findings demonstrated that the heteroatom strategy effectively modulated the luminescence wavelength of the complex,providing a viable approach for developing high-efficiency luminescent materials with robust thermal stability.关键词
杂原子策略/热激活延时荧光(TADF)/Z型链状配合物/光电性能/波长调节Key words
heteroatom strategy/thermally activated delayed fluorescence(TADF)/Z-type chain complexes/photoelectric properties/wavelength adjustment分类
化学化工引用本文复制引用
刘慧玲,李佳宣,唐贝贝,黄家财,渠星宇,陈连清..基于杂原子策略热激活延迟荧光Z型链状配合物的制备、结构及光电性能研究[J].中南民族大学学报（自然科学版）,2025,44(6):763-777,15.基金项目
国家自然科学基金资助项目(52272102) （52272102）
湖北省青年英才开发计划资助项目(RCJH15001) （RCJH15001）
湖北省杰出青年基金资助项目(2013CFA034) （2013CFA034）
中央高校基本科研业务费专项资金资助项目(CZZ24002) （CZZ24002）
