Synthesis, characterization and crystal structure of a dioxomolybdenum(VI) complex derived from <i>N’</i>-(2-hydroxy-4-diethaylaminobenzylidene)-4-hydroxybenzohydrazide
Synthesis, characterization and crystal structure of a dioxomolybdenum(VI) complex derived from <i>N’</i>-(2-hydroxy-4-diethaylaminobenzylidene)-4-hydroxybenzohydrazide
作者:G-H. Sheng、Z-L. You、H-L. Zhu
DOI:10.4314/bcse.v28i3.10
日期:——
Reaction of [MoO2(acac)2] (where acac = acetylacetonate) with N’-(2-hydroxy-4-diethaylaminobenzylidene)-4-hydroxybenzohydrazide (H2L) in methanol afforded a methanol-coordinated mononuclear molybdenum(VI) oxo complex, [MoO2L(MeOH)]. Crystal and molecular structure of the complex were determined by single crystal X-ray diffraction method. The complex was further characterized by elemental analysis and FT-IR spectra. Single crystal X-ray structural studies indicate that the hydrazone ligand coordinates to the MoO2 core through enolate oxygen, phenolate oxygen and azomethine nitrogen. The Mo atom in the complex is in octahedral coordination. Thermal stability of the complex has also been studied.
(PEGESB) was synthesized and applied as fluorescentchemosensor in pure aqueousmedia. PEGESB exhibited excellent selectivity and anti-interference ability for Al3+ with naked eye fluorescence color change from colorless to bright cyan. The detection limit of PEGESB for Al3+ was determined to be as low as 2.93 × 10−9 M. PEGESB was stable and could effectively detect Al3+ over a wide pH range from 5 to 10
合成了席夫碱衍生物终止的PEG(PEGESB),并在纯水介质中用作荧光化学传感器。PEGESB对Al 3+具有优异的选择性和抗干扰能力,并且肉眼荧光的颜色从无色变为亮青色。PEGESB的用于铝的检测限3+测定为低至2.93×10 -9 M. PEGESB是稳定的并能有效地检测出的Al 3+在宽的pH范围是5〜10 PEGESB被证明是一个可逆向PEGESB水溶液中交替添加Al 3+和EDTA的荧光化学传感器。PEGESB溶液对Al 3+的荧光响应EDTA被用于构建INHIBIT逻辑门。另外,已经准备好涂有PEGESB的试纸,用于现场感测真实水样中的Al 3+。
4-Hydroxy-benzoic acid (4-diethylamino-2-hydroxy-benzylidene)hydrazide: DFT, antioxidant, spectroscopic and molecular docking studies with BSA
N-2-Hydroxybenzaldehyde acylhydrazone–Fe(<scp>iii</scp>) complex: synthesis, crystal structure and its efficient and selective N-methylation
作者:Zhiyou Li、Lamei Wu、Tao Zhang、Zhengxi Huang、Guofu Qiu、Zhongqiang Zhou、Longfei Jin
DOI:10.1039/c4dt00121d
日期:——
The n-acylhydrazone–Fe(iii) complexes permit ligand's amide N to be easily methylated and suppress the O-methylation side reactions of phenol.
n-酰基腙-Fe(III)配合物允许配体的酰胺N易于甲基化,并抑制酚的O-甲基化副反应。
Synthesis, structure, and catalytic oxidation of a molybdenum(VI) complex [MoO2(CH3OH)L]
作者:H. Y. Liu、L. Q. Zang、J. L. Lv
DOI:10.1134/s1070328415070052
日期:2015.7
= 94.399(2)°, β = 101.877(2)°, γ = 104.062(2)°, V = 1025.9(2) Å3, Z = 2, R 1 = 0.0317, wR 2 = 0.0796, S = 1.060. The Mo atom in the complex is in an octahedral coordination with phenolate O, imino N, enolate O atoms of the ligand L, and one oxo O in the equatorial plane, and with one methanol O and the other oxo O in the axial sites. Crystals of the complex are stabilized by hydrogen bonds. The complex
制备了一种新的钼(VI)络合物[MoO 2(CH 3 OH)(L)](L = N '-(4-二乙基氨基-2-羟基苄叉)-4-羟基苯并肼晶体X射线衍射(CIF文件CCDC号1038153)。配合物C 19 H 23 MoN 3 O 6的晶体在三斜晶空间群\(P \ bar 1 \)中结晶,晶胞尺寸为a = 6.9824(9),b = 10.206(1),c = 15.302 (2)埃,α= 94.399(2)°,β= 101.877(2)°,γ= 104.062(2)°,V = 1025.9(2)埃3,ž= 2,R 1 = 0.0317,wR 2 = 0.0796,S = 1.060。络合物中的Mo原子与配体L的酚盐O,亚氨基N,烯醇式O原子和赤道平面中的一个oxo处于八面体配位,并且在轴向位点与一个甲醇O和另一个oxo O处于八面体配位。配合物的晶体通过氢键稳定。以叔丁基过氧化氢为氧化剂,