Cobalt metal-mixed organic complex-based hybrid micromaterials: ratiometric detection of cyanide
作者:Hai-Bo Liu、He-Song Han、Bin Lan、Dong-Mei Xiao、Jing Liang、Zi-Ying Zhang、Jing Wang
DOI:10.1039/c8ra00079d
日期:——
A cobalt metal-mixed organic complex-based hybrid micromaterial has been presented to detect CN− with ratiometric absorption responses (A456 nm/A537 nm).
[RuHCl(CO)(PPh3)3] and 2-(2-thiazolylazo) cresol ligand (TAC) in benzene under reflux afforded a new pincer type ruthenium(II) carbonyl complex containing thiazolylazo cresol of general formula [RuCl(CO)(PPh3)(TAC)] (TAC = mono anionic NNO donor). The complex has been characterized by elemental analyses, FT-IR, UV–Vis, and 1H NMR spectral methods. The crystalstructure of the complex [RuCl(CO)(PPh3)(TAC)]
Selective H2PO4− anion sensing by two neutral Zn2+ complexes and combined theoretical and experimental studies of their structural and spectral properties
作者:Amar Hens、Pallab Mondal、Kajal Krishna Rajak
DOI:10.1016/j.poly.2014.08.024
日期:2015.1
thiazole and substituted phenol moieties with Zn2+ in a 1:2 (M:HL) molar proportion in methanol at ambient condition afforded complexes of the composition [Zn(L)2] in excellent yields. Here L is the deprotonated form of 2-(2-thiazolylazo)-p-cresol (HL1) and 4-(2-thiazolylazo)-resorcinol (HL2). Their detailed optical properties have been investigated experimentally and theoretically. The mechanism of
摘要在环境条件下,甲醇中摩尔比为1:2(M:HL)的具有偶氮核并有噻唑和取代酚部分与Zn2 +结合的偶氮酚基受体(HL)在甲醇中反应,形成了[Zn( L)2]。这里L是2-(2-噻唑基)-对甲酚(HL1)和4-(2-噻唑基)-间苯二酚(HL2)的去质子化形式。已通过实验和理论研究了它们的详细光学性质。金属-配体相互作用的机理已通过吸收和发射光谱实验确定,证实了Zn2 +离子与配体部分的良好配位,导致形成两个1:2的五元螯合环(M: L)配合物。两种复合物在室温下,随着丙酮水溶液(4:1 v / v)(pH 7.4,0.01 M HEPES)中H2PO4-(Pi)阴离子浓度的增加,对降低荧光强度的特性均显示出显着的选择性。温度。DFT和TDDFT计算表明,ICT过程从对甲酚环(供体,HOMO)到噻唑和偶氮部分(受体,LUMO),在Zn2 +和配体之间的络合过程中通过CHEF机制增强了荧光强度。
Methoxido‐Bridged Lacunary Heterocubane Oxidovanadium(IV) Cluster with Azo Ligands: Synthesis, X‐ray Structure, Magnetic Properties, and Antiproliferative Activity
Two thiazolyl based μ3-methoxido bridged trinuclear vanadium(IV) arylazo complexes are described. Magnetic susceptibility measurements show an antiferromagnetic coupling between the three vanadium(IV) centers mediated by the μ2-OMe co-ligands, consistent with the syn-coplanar bridging mode, as revealed by spin-density analyses. In vitro cytotoxicity results of the complexes were promising against HeLa