songxueqin
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- Supervisor of Doctorate Candidates
- Supervisor of Master's Candidates
- Name (Pinyin):songxueqin
- Date of Employment:1991-07-26
- Education Level:Postgraduate (Doctoral)
- Degree:Doctoral degree
- Status:Employed
- Teacher College:School of Chemistry and Biological Engineering
Contact Information
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- Paper Publications
Coordination-Driven Self-Assembled ZnII6‑LnIII3 Metallocycles Based on a Salicylamide Imine Ligand: Synthesis, Structure, and Selective Luminescence Enhancement Induced by OAc−
Release time:2021-05-29 Hits:
- DOI number:10.1021/acs.inorgchem.8b01525
- Affiliation of Author(s):兰州交通大学
- Teaching and Research Group:化工学院301
- Journal:Inorganic Chemistry
- Place of Publication:ACS
- Funded by:国家自然科学基金
- Abstract:Five heterometallic ZnII6-LnIII3 macrocycles based on a salicylamide imine multidentate unsymmetrical ligand H2L [1-(2-hydroxy-3-methoxy-benzamido)-2-(2-hydroxy-3-methoxy-benzylideneamino)-ethane] have been prepared via a coordination-driven self-assembly strategy. Single-crystal X-ray diffraction analysis reveals that the five metallocycles are isomorphic with a formula of [Zn6Ln3L6(OH)2(NO3)4(H2O)]·3NO3·nCH3CN (ZnLn-1, where Ln = Pr, Nd, Eu, Tb, or Yb; for ZnPr-1, n = 4; for ZnNd-1, ZnEu-1, and ZnTb-1, n = 2; for ZnYb-1, n = 3), where six octadentate ligands L2− and two in situformed μ2-OH− ions bridged the alternating ZnII-LnIII-ZnII subunits into a macrocycle. Along with the structural novelty, ZnNd-1 shows distinctive enhanced emission in the visible and near-infrared range upon addition of OAc−. On the basis of ultraviolet−visible spectroscopy, 1H nuclear magnetic resonance, single-crystal X-ray diffraction, and high-resolution electrospray ionization mass spectrometry, we deduced that this emission enhancement could be attributed to the synergistic effect of TICT and the absent nonradiative transition of μ2-OH− induced distinctively by OAc− bridging. Our results demonstrate that the NdIII-containing heterometallic macrocycle can act as a host for anion exchanging and provide a nice example of heterometallic macrocycles with interesting properties and potential applications.
- Co-author:Ali Alhafeez Abdulrheem Shamshoom,孟欢欢,王彩云
- Indexed by:Journal paper
- Correspondence Author:刘伟生,宋学琴
- Discipline:Natural Science
- First-Level Discipline:Chemistry
- Document Type:J
- Issue:57
- Page Number:10873−10880
- Translation or Not:no
- Date of Publication:2018-08-13
- Included Journals:SCI
- Links to published journals:https://pubs.acs.org/doi/10.1021/acs.inorgchem.8b01525
