Hetero-trinuclear Zn(II)-M(II) (M = Sr, Ba) complexes based on a mononuclear Zn(II) complex metallohost: syntheses, structures and fluorescence properties
作者:Wen-Kui Dong、Jian-Chun Ma、Yin-Juan Dong、Li Zhao、Li-Chun Zhu、Yin-Xia Sun、Yang Zhang
DOI:10.1080/00958972.2016.1231302
日期:2016.11.1
Sr (2), Ba (3)). In 2 and 3, Zn(II) ions are 5-coordinate, but the Sr(II) or Ba(II) ion is 10-coordinate by four μ-phenolic oxygens from two L2− units, four oxygens from four ethoxy groups and two oxygens from two μ-acetato ligands. Furthermore, 1–3 exhibit blue emissions with the maximum emission wavelengths λmax = 477, 500, and 471 nm when excited at 360 nm.
摘要 合成了一种新的单核 Zn(II) 配合物 [ZnL(HOAc)] (1) (H2L = 6,6'-diethoxy-2,2'-[1,2-ethylenedioxybis(nitrilomethylidyne)]diphenol) H2L 和 Zn(II) 醋酸盐在溶剂热条件下的反应。复合物 1 充当金属宿主,拥有五齿 O5 供体。结合到一个 Sr(II) 或 Ba(II) 的配合物 1 分子形成两个新的异三核配合物,[(ZnL)2M(OAc)2](M = Sr(2),Ba(3))。在 2 和 3 中,Zn(II) 离子是 5-配位的,但是 Sr(II) 或 Ba(II) 离子是 10-配位的,由来自两个 L2− 单元的四个 μ-酚氧,来自四个乙氧基的四个氧和来自两个 μ-乙酰基配体的两个氧。此外,当在 360 nm 激发时,1-3 表现出最大发射波长 λmax = 477、500 和