bis(2-methoxybenzaldehyde)oxaloyldihydrazone | 6624-39-1

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: bis(2-methoxybenzaldehyde)oxaloyldihydrazone
• 英文别名: N,N'-bis[(2-methoxyphenyl)methylideneamino]oxamide
• CAS: 6624-39-1
• 化学式: C₁₈H₁₈N₄O₄
• 分子量: 354.365
• InChiKey: SYLAIXNHNXVHIG-UHFFFAOYSA-N

物化性质

• 密度：
  1.22±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  26
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  101
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  bis(2-methoxybenzaldehyde)oxaloyldihydrazone 、 manganese(II) acetate 、 N,N-二甲基甲酰胺 以 甲醇 为溶剂， 反应 4.0h， 生成
  参考文献：
  名称：

  Mn2+-COMPLEXES OF N,O-DIHYDRAZONE: STRUCTURAL STUDIES, INDIRECT BAND GAP ENERGY AND CORROSION INHIBITION ON ALUMINUM IN ACIDIC MEDIUM

  摘要：

  Mononuclear manganese complexes of dihydrazone derived from the condensation of oxaloyldihydrazide with 2-hydroxynaphthaldehyde and 2-methoxybenzaldehyde have been synthesized. The hydrazone Schiff base ligands and their chelates were characterized on the basis of their elemental analyses. spectral (UV-Vis., IR, mass, H-1/C-13 NMR), magnetism, ESR and thermal (TGA) measurements. The dihydrazone has been suggested to coordinate to the metal center in bi-dentate manner forming 1:1[M:L] complex. The complexes are suggested to have tetrahedral/octahedral stereochemistry. Optical transmission spectra were recorded in the range 190-2100 nm and optical band gap energy was determined. The band gap energy (E-g) for all separated compounds lies in the range of semiconductors. On the other hand, the inhibition and adsorptive properties of the ligands for the corrosion of aluminum in 1 M HCl solutions were studied using traditional weight loss measurements. The results revealed that bis(2-methoxy-benzaldehyde)oxaloyldihydrazone has a greater inhibition than bis(2-hydroxy-1-naphthaldehyde)oxaloyldihydrazone. The adsorption of the inhibitors on metal surface was found to be spontaneous first order reaction and consistent well with the mechanism of physical adsorption. The adsorption data fitted well to Freundlich, Langmuir and Frumkin adsorption isotherms.

  DOI：

  10.4067/s0717-97072018000404180
• 作为产物：
  描述：

  乙二酸二酰肼 、 邻甲氧基苯甲醛 以 乙醇 、 水 为溶剂， 反应 3.0h， 以78%的产率得到bis(2-methoxybenzaldehyde)oxaloyldihydrazone
  参考文献：
  名称：

  N,N'-双[2-羟基亚萘基]/[2-甲氧基苯亚甲基]氨基]草酰胺及其二价锰配合物：分离、光谱表征、形态学、抗菌和对白血病细胞的细胞毒性

  摘要：

  摘要 草酸二腙{N,N'-双[2-羟基亚萘基]氨基]草酰胺(BHO)和N,N'-双[2-甲氧基亚苄基]氨基]草酰胺(BMO)}的锰(ii)配合物已通过以下方法合成一种通用的方法论。腙配体（BHO和BMO）通过草酸二酰肼与2-羟基萘-1-甲醛和2-甲氧基苯甲醛缩合获得。从光谱（质量、IR、1H-NMR、UV-Vis、ESR）、磁和热测量以及元素分析 (CHNM) 获得的数据中，已经确定了配体及其配合物的结构。扫描电子显微镜 (SEM) 用于表征复杂表面的形貌。配体以双齿方式与金属中心配位，形成双核 Mn-BHO 和单核 Mn-BMO 配合物。建议锰配合物具有八面体立体化学。已经评估了配体和锰 (ii) 配合物的抗菌和抗白血病活性。与锰 (ii) 离子配位后，游离配体的增殖障碍增强。

  DOI：

  10.1515/chem-2020-0044

文献信息

• Physicochemical studies on some selected oxaloyldihydrazones and their novel palladium(II) complexes along with using oxaloyldihydrazones as corrosion resistants
  作者：Ayman H. Ahmed、A. M. Hassan、Bassem H. Mohamed、Hosni A. Gumaa、Ahmed M. Eraky

  DOI：10.1080/24701556.2017.1357595

  日期：2017.12.2

  New palladium (II) oxaloyldihydrazone complexes are reported and characterized. The mode of bonding as well as the structure of the isolated compounds have been ascertained on the basis of data obtained from elemental analyses (CHNM), spectral (UV-Vis., IR, mass and 1H NMR) and thermal (TG and DTA) measurements. Some optical parameters such as indirect optical band gap and refractive index were estimated

  据报道和表征了新的钯（II）草酰二hydr配合物。已根据元素分析（CHNM），光谱（UV-Vis。，IR，质量和1 H NMR）和热（TG和DTA）获得的数据确定了键合模式以及分离的化合物的结构） 测量。对于分离出的化合物，估计了一些光学参数，例如间接光学带隙和折射率。测试了所有合成的在1 M HCl溶液中对碳钢腐蚀的抑制性能。steel抑制剂在钢表面的吸附过程是自发的一级反应。
• N,N′-Bis[2-hydroxynaphthylidene]/[2-methoxybenzylidene]amino]oxamides and their divalent manganese complexes: Isolation, spectral characterization, morphology, antibacterial and cytotoxicity against leukemia cells
  作者：Ayman H. Ahmed

  DOI：10.1515/chem-2020-0044

  日期：2020.5.18

  oxalic dihydrazide with 2-hydroxynaphthalene-1-carbaldehyde and 2-methoxybenzaldehyde. From the data obtained from the spectral (mass, IR, 1H-NMR, UV-Vis, ESR), magnetic and thermal measurements in addition to the elemental analyses (CHNM), the structures of ligands and their complexes have been determined. The scanning electron microscope (SEM) was used to characterize the morphology of the complex

  摘要 草酸二腙N,N'-双[2-羟基亚萘基]氨基]草酰胺(BHO)和N,N'-双[2-甲氧基亚苄基]氨基]草酰胺(BMO)}的锰(ii)配合物已通过以下方法合成一种通用的方法论。腙配体（BHO和BMO）通过草酸二酰肼与2-羟基萘-1-甲醛和2-甲氧基苯甲醛缩合获得。从光谱（质量、IR、1H-NMR、UV-Vis、ESR）、磁和热测量以及元素分析 (CHNM) 获得的数据中，已经确定了配体及其配合物的结构。扫描电子显微镜 (SEM) 用于表征复杂表面的形貌。配体以双齿方式与金属中心配位，形成双核 Mn-BHO 和单核 Mn-BMO 配合物。建议锰配合物具有八面体立体化学。已经评估了配体和锰 (ii) 配合物的抗菌和抗白血病活性。与锰 (ii) 离子配位后，游离配体的增殖障碍增强。
• Mn2+-COMPLEXES OF N,O-DIHYDRAZONE: STRUCTURAL STUDIES, INDIRECT BAND GAP ENERGY AND CORROSION INHIBITION ON ALUMINUM IN ACIDIC MEDIUM
  作者：Ayman H. Ahmed、A.M. Hassan、Hosni A. Gumaa、Bassem H. Mohamed、Ahmed M. Eraky

  DOI：10.4067/s0717-97072018000404180

  日期：——

  Mononuclear manganese complexes of dihydrazone derived from the condensation of oxaloyldihydrazide with 2-hydroxynaphthaldehyde and 2-methoxybenzaldehyde have been synthesized. The hydrazone Schiff base ligands and their chelates were characterized on the basis of their elemental analyses. spectral (UV-Vis., IR, mass, H-1/C-13 NMR), magnetism, ESR and thermal (TGA) measurements. The dihydrazone has been suggested to coordinate to the metal center in bi-dentate manner forming 1:1[M:L] complex. The complexes are suggested to have tetrahedral/octahedral stereochemistry. Optical transmission spectra were recorded in the range 190-2100 nm and optical band gap energy was determined. The band gap energy (E-g) for all separated compounds lies in the range of semiconductors. On the other hand, the inhibition and adsorptive properties of the ligands for the corrosion of aluminum in 1 M HCl solutions were studied using traditional weight loss measurements. The results revealed that bis(2-methoxy-benzaldehyde)oxaloyldihydrazone has a greater inhibition than bis(2-hydroxy-1-naphthaldehyde)oxaloyldihydrazone. The adsorption of the inhibitors on metal surface was found to be spontaneous first order reaction and consistent well with the mechanism of physical adsorption. The adsorption data fitted well to Freundlich, Langmuir and Frumkin adsorption isotherms.