M<sup>II</sup> (M = Mn, Fe, Co, Ni and Cu) complexes with a chromone-derived neutral ligand: synthesis, structural characterization, photocatalytic and mycobacterial activity studies
作者:Mariana Leticia Munin Camargo、Cristiane Storck Schwalm、Tanize Bortolotto、Natália de Freitas Daudt、Grazielle Guidolin Rossi、Marli Matiko Anraku de Campos、Kaique Alexandre D’Oliveira、Alexandre Cuin、Vânia Denise Schwade
DOI:10.1039/d1nj05011g
日期:——
new molecule showed fluorescence emission in solution and in the solid state (intense emission at 556 nm [λexc 392 nm] in the solid state). Ligand L and coordination compounds [MCl2(L)2]n (M = Mn (1), Fe (2), Co (3), Ni (4) and Cu (5)) and [Cu(NCS)2(L)2]n (6) were characterized using spectroscopic techniques. The crystal structures were determined via single-crystal X-ray diffraction and powder X-ray
2-(2-呋喃基)-3-羟基色酮和烟酰氯的反应产生具有氮和氧供体原子的中性配体 ( L )。讨论了L多态性的证据。新分子在溶液和固态下都显示出荧光发射(固态下在 556 nm [ λ exc 392 nm] 处的强发射)。配体L和配位化合物 [MCl 2 (L) 2 ] n (M = Mn ( 1 ), Fe ( 2 ), Co ( 3 ), Ni ( 4 ) 和 Cu ( 5 )) 和 [Cu(NCS) 2 ( L) 2 ] n( 6 ) 使用光谱技术进行表征。通过单晶 X 射线衍射和粉末 X 射线衍射确定晶体结构。对化合物1-5进行了分枝杆菌菌株的生物学测试。这些化合物的光学带隙能量范围为 3.29 至 3.39 eV,由漫反射光谱数据估算。制备并测试了基于介孔TiO 2的光催化剂的制氢。m-TiO 2 - 5光催化剂在使用300 W Hg/Xe灯照射下以1052.5 μmol g -1