oxo (salicylidene aminoacetato) vanadium (IV) hydrate | 25807-25-4

• 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: oxo (salicylidene aminoacetato) vanadium (IV) hydrate
• CAS: 25807-25-4
• 化学式: C₉H₉NO₅V
• 分子量: 262.116
• InChiKey: IWOITGCWVFAEQF-RWWJYAHQSA-L

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为反应物：
  描述：

  oxo (salicylidene aminoacetato) vanadium (IV) hydrate 在 pyridine 作用下， 以 吡啶 为溶剂， 生成
  参考文献：
  名称：

  Cavaco, Isabel; Costa Pessoa, Joao; Costa, Dina, Journal of the Chemical Society, Dalton Transactions

  摘要：

  DOI：
• 作为产物：
  描述：

  聚甘氨酸 、 钒 、 水杨醛 以 乙醇 、 水 为溶剂， 生成 oxo (salicylidene aminoacetato) vanadium (IV) hydrate
  参考文献：
  名称：

  Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: V: MVol.A2, 95, page 546 - 548

  摘要：

  DOI：

文献信息

• Sugar vanadates: synthesis and characterisation of mannopyranoside and ribofuranoside esters incorporating VO3+
  作者：Kajal Krishna Rajak、Sankar Prasad Rath、Sujit Mondal、Animesh Chakravorty

  DOI：10.1039/a902632k

  日期：——

  The sugars, methyl 4,6-di-O-methyl-α-D-mannopyranoside (H2m) and methyl 5-O-methyl-β-D-ribofuranoside (H2r) have been synthesized. These react smoothly with [VIVO(L)(H2O)] in methanol in air affording the dark coloured vanadates [VVO(Hm)(L)] and [VVO(Hr)(L)] in excellent yields (L2– = N-salicylideneglycinate). The crystal structure determination of [VVO(Hm)(L)] revealed five-membered chelation of VO3+ by the alcoholic and alkoxide oxygen atoms of the monoionised carbohydrate. The two atoms lie respectively trans to the oxo oxygen and aldimine nitrogen atoms. The five V–O bonds are unequal and span the range 1.57–2.37 Å. The asymmetric unit of the complex consists of two metrically similar molecules locked in carboxylate–alcohol O· · ·O hydrogen bonding generating a macrocyclic cavity. In solution each ester displays a single 51V resonance near δ –544. The 1H NMR parameters of the alkoxidic and alcoholic CH protons and of OMe protons are consistent with the O,O-chelation mode for both the vanadates.

  我们合成了 4,6-二-O-甲基-α-D-吡喃甘露糖苷 (H2m) 和 5-O-甲基-β-D-呋喃核糖苷 (H2r)。这些物质与甲醇中的[VIVO(L)(H2O)]在空气中顺利反应，生成深色的钒酸盐[VVO(Hm)(L)]和[VVO(Hr)(L)]，产量极高（L2- = N-水杨醛甘氨酸）。对[VVO(Hm)(L)]晶体结构的测定显示，VO3+ 与单离子化碳水化合物的醇氧原子和氧化烷氧原子之间存在五元螯合关系。这两个原子分别反式位于氧化氧原子和醛亚胺氮原子上。复合物的不对称单元由两个度数相似的分子组成，它们通过羧基-醇基 O- - O 氢键结合形成一个大环空腔。在溶液中，每个酯都δ -544附近显示一个51V共振。烷氧基和酒精 CH 质子以及 OMe 质子的 1H NMR 参数与这两种钒酸盐的 O,O 螯合模式一致。
• The preparation and synthetic potential of chlorovanadium(V and IV) complexes supported by enamines and bis(enamines)
  作者：Hauke Schmidt、Dieter Rehder

  DOI：10.1016/s0020-1693(97)05618-1

  日期：1998.1

  non-oxo complex V(dimethylnalonate)enam (5). The bis(enamine) (double Schiff base) formed between (1S,2S)-1,2-diphenyl-1,2-diaminoethane (SS-dpen) and two equivalents of o-vanillin (van) in the presence of VO2+ generates the complex VO(van-SS-dpen) (6), which yields trans-[VCL2(van-S,S-dpen)] (7) on treatment with SOC12. 7 reacts with dilithium benzilate to form the non-oxo complex V(benzilate)(van-S

  摘要在XCl的情况下，VOX3与官能化烯胺（席夫碱）的反应导致生成VO（Cl）enam（1）的氧钒（V）配合物，而在XCl情况下生成VO（OiPr）（HOiPr）enam（2）的氧钒（V）配合物。 XOiPr。enam代表ONO（2-）供体集。也可以通过用OR取代1中的Cl来获得2型配合物。含钒氧离子和两个席夫碱成分的水溶液中的席夫碱的含氧钒（IV）配合物具有氨基酸部分，形成席夫碱的VO（H2O）enam（3）。用SOCl 2处理3得到顺式-[VCL 2（enam）]（4），其可以进一步转化为非-氧配合物V（二甲基纳膦酸酯）enam（5）。（1S，2S）-1,2-二苯基-1,2-二氨基乙烷（SS-dpen）与两当量的邻香兰素（van）在VO2 +存在下形成的双（烯胺）（双席夫碱）生成复杂的VO（van-SS-dpen）（6），产生反式[VCL2（van-S，S-dpen）]（7）处理
• Microwave Assisted Synthesis and Antioxidant Activity of Vanadium(IV) Complexes of Amino Acid Schiff Bases
  作者：Sachin S. Wazalwar、Narayan S. Bhave

  DOI：10.1080/15533174.2012.680100

  日期：2012.9.1

  Synthesis of some amino acid Schiff base complexes of vanadium(IV) was done using microwave mode of synthesis and aqueous/semiaqueous medium as solvent. Complexes were characterized by using common analytical and spectroscopic tools such as IR, H-1 NMR, EI Mass, ESR, and magnetic susceptibility measurements. Single-crystal X-ray analysis of one of the complexes was carried out. Antioxidant activity of the complexes was studied using the DPPH scavenging method. The present work attempts to establish a possible structure and antioxidant activity correlation of the synthesized complexes. Some of the complexes show comparable activity to that of the standard reference (i.e., ascorbic acid).[GRAPHICS].
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: V: MVol.B2, 191, page 778 - 781
  作者：

  DOI：——

  日期：——
• A Family of Vanadate Esters of Monoionized and Diionized Aromatic 1,2-Diols: Synthesis, Structure, and Redox Activity
  作者：Bharat Baruah、Samir Das、Animesh Chakravorty

  DOI：10.1021/ic020259d

  日期：2002.8.1

  The concerned diols (general abbreviation, H2L) are catechol (H2L1) and its 3,5-Bu-2(t) derivative (H2L2). Esters of the type VO(xsal)(HL), 2, are obtained by reacting H2L with VO(xsal)(H2O) or VO(xsal)(OMe)(HOMe), where xsal(2-) is the diionized salicylaldimine of glycine (x = g), L-alanine (x = a), or L-valine (x = v). The reaction of VO(acaC)(2) with H2L and the salicylaldimine (Hpsal) of 2-picolylamine has furnished VO(psal)(L), 3. In the structures of VO(gsal)(HL1), 2a, and VO(vsal)(HL2), 2f, the HL- ligand is O,O-chelated, the phenolic oxygen lying trans to the oxo oxygen atom. The xsal(2-) coligand has a folded structure and the conformation of 2f is exclusively endo. In both 2a and 2f the phenolic oxygen atom is strongly hydrogen bonded (O...O, 2.60 Angstrom) to a carboxylic oxygen atom of a neighboring molecule. In VO(psal)(L-2)-H2O, 3b, the diionized diol is O,O-chelated to the metal and the water molecule is hydrogen bonded to a phenoxidic oxygen atom (O...O, 2.84 Angstrom). The C-O and C-C distances in the V(diol) fragment reveal that 2 is a pure catecholate and 3 is a catecholate-semiquinonate hybrid. In solution each ester gives rise to a single V-51 NMR signal (no diastereoisomers), which generally shifts downfield with a decrease in the ester LMCT band energy. The V(V)/V(IV) and catecholate-semiquinonate reduction potentials lie near -0.75 and 0.35, and 1.10 and 0.70 V vs SCE for 2 and 3, respectively. Molecular oxygen reacts smoothly with 2 quantitatively furnishing the corresponding o-quinone, and in the presence of H2L the reaction becomes catalytic. In contrast, type 3 esters are inert to oxygen. The initial binding of O-2 to 2 is proposed to occur via hydrogen bonding with chelated HL-.