DOI码：10.1021/acs.inorgchem.8b01525
所属单位：兰州交通大学
教研室：化工学院301
发表刊物：Inorganic Chemistry
刊物所在地：美国化学会
项目来源：国家自然科学基金
摘要：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.
合写作者：Ali Alhafeez Abdulrheem Shamshoom,孟欢欢,王彩云
论文类型：期刊论文
通讯作者：刘伟生,宋学琴
学科门类：理学
一级学科：化学
文献类型：J
期号：57
页面范围：10873−10880
是否译文：否
发表时间：2018-08-13
收录刊物：SCI
发布期刊链接：https://pubs.acs.org/doi/10.1021/acs.inorgchem.8b01525