Thermochemistry of tris(l,1,1 -trifluoropentane-2,4-dionato)- and tris(2,2,6,6-tetramethylheptane-3,5-dionato)-aluminium(III)
作者:Roger J. Irving、Manuel A. V. Ribeiro da Silva
DOI:10.1039/dt9760001940
日期:——
Enthalpies of formation of the crystalline title complexes have been determined at 298.15 K by solution calorimetry: ΔHf⊖[Al(tfpd)3(c)]=–892.7 ± 3.1 and ΔHf⊖[Al(tmhd)3(c)]=–571.5 ± 3.1 kcal mol–1. Gas-phase enthalpies have been calculated, and from these the Al–O bond energies have been derived.
A selective sensing of Al3+ ions by nitrophenyl induced coordination has been developed and applied for the detection of Al3+ in the brain tissue of zebrafish.
Ligand-Substitution Reaction Kinetics of Tris(8-quinolinolato)- and Bis(2-methyl-8-quinolinolato)(8-quinolinolato)aluminum(III) Complexes with Ethylenediamine-<i>N</i>,<i>N</i>,<i>N</i>′,<i>N</i>′-tetraacetic Acid
Ligand-substitution reactions of [Al(hq)3] and [Al(hq)(mhq)2] (H(m)hq: (2-methyl-)8-quinolinol) with H4edta have been studied at 25 °C and 1.0 mol dm−3 NaCl by means of the stopped-flow spectrophotometric method. Three concurrent reaction pathways, a dissociative activation one and two parallel associative activation ones, to which H2edta2− and Hedta3− contribute, are elucidated.
α-Amino Acid Derived Benzimidazole-Linked Rhodamines: A Case of Substitution Effect at the Amino Acid Site toward Spiro Ring Opening for Selective Sensing of Al<sup>3+</sup> Ions
作者:Anupam Majumdar、Subhendu Mondal、Constantin G. Daniliuc、Debashis Sahu、Bishwajit Ganguly、Sourav Ghosh、Utpal Ghosh、Kumaresh Ghosh
DOI:10.1021/acs.inorgchem.7b00835
日期:2017.8.7
changes. In contrast, glycine-derived benzimidazole 3 remains silent in the recognition event and emphasizes the role of α-substitution of amino acid undertaken in the design. The fact has been addressed on the basis of the single-crystal X-ray structures and theoretical calculations. Moreover, pink 1·Al3+ and 2·Al3+ ensembles selectively sensed F– ions over other halides through a discharge of color. Importantly
α -氨基酸衍生的苯并咪唑联罗丹明已被合成,和它们的金属离子传感特性进行了评价。实验上,衍生自1-缬氨酸和1-苯基甘氨酸的基于苯并咪唑的若丹明1和2可选择性识别CH 3 CN水溶液中的Al 3+离子(CH 3 CN / H 2 O 4/1 v / v,10 mM tris HCl缓冲液(pH 7.0),通过显示颜色和“开启”发射变化来实现。相反,甘氨酸衍生的苯并咪唑3在识别事件中保持沉默,并强调了氨基酸α-取代在设计中所起的作用。该事实已根据单晶X射线结构和理论计算得到解决。此外,粉1 ·的Al 3+和2 ·铝3+合奏选择性地感测˚F -通过颜色的放电过其它卤化物离子。重要的是,化合物1和2是可渗透细胞的,并且已用作成像试剂,用于检测人肺癌细胞系A549中的Al 3+摄取。