Dipicolinate

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: Dipicolinate
• 英文别名: 2,6-pyridine dicarboxylate；pyridine-2,6-dicarboxylate；2,6-pyridinedicarboxylate
• 化学式: C₇H₃NO₄
• 分子量: 165.105
• InChiKey: WJJMNDUMQPNECX-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  93.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  Dipicolinate 在 H₂O₂ 、 pyridine 作用下， 以 甲醇 、 丙酮 、 乙腈 为溶剂， 生成
  参考文献：
  名称：

  Novel peroxo complexes of thorium containing organic ligands

  摘要：

  DOI：

  10.1021/ic00138a059
• 作为产物：
  描述：

  disilver;pyridine-2,6-dicarboxylate;pyridine-2,6-dicarboxylic acid;hydrate 生成 Dipicolinate
  参考文献：
  名称：

  New silver(I) pyridinecarboxylate complexes: synthesis, characterization, and antimicrobial therapeutic potential

  摘要：

  Silver(I) pyridinecarboxylates (AgPIC (1), AgNIC (2), [Ag(HDIPIC)]Greek ano teleia0.75H(2)O (3), PIC = picolinate, NIC = nicotinate, HDIPIC = dipicolinate) were prepared by solvothermal syntheses and their characterization were completed by elemental, spectral, and thermal analyses. To assign the pyridinecarboxylate coordination mode in the complexes, detailed mid-infrared spectral data and Delta(nu(as )- nu(s)) comparisons were accomplished. In addition, silver(I) pyridinecarboxylate antimicrobial activities and stability by H-1 NMR spectra were determined. Moreover, the spectral, thermal, and antimicrobial properties of silver(I) and previously prepared zinc(II) pyridinecarboxylates were compared and discussed.

  DOI：

  10.1080/00958972.2014.906588

文献信息

• A new A3B zinc(II)-porphyrin ligand and its ruthenium(II) complex: Synthesis, photophysical properties and photocatalytic applications
  作者：Xiu-yue Yu、Hui Su、Xin Zheng、Wen-bo Liu、Yao He、Na-na Fei、Ru Qiao、Yun-lai Ren、Cao-yuan Niu

  DOI：10.1016/j.molstruc.2021.130358

  日期：2021.8

  Porphyrins and metalloporphyrins (or porphyrin coordination complexes) have been wildly investigated as photocatalysts in recent years. Herein we synthesized two new A3B porphyrins, a new asymmetric A3B zinc-porphyrin ligand with peripheral chelate group (pyridine dicarboxylate), and a ruthenium(II) complex of the porphyrin ligand. Their photo-physical properties were characterized and investigated

  近年来，对卟啉和金属卟啉（或卟啉配位配合物）作为光催化剂进行了广泛的研究。在这里，我们合成了两个新的A 3 B卟啉，一个新的不对称A 3具有外围螯合基团（吡啶二羧酸盐）的B锌卟啉配体，以及卟啉配体的钌（II）配合物。通过紫外可见光谱和荧光发射对它们的光物理性质进行了表征和研究。通过DFT理论计算优化了分子结构的建模。所有卟啉化合物在Soret谱带和Q谱带均显示出强吸收性。就荧光而言，卟啉的游离碱比其他两种锌卟啉和钌-卟啉具有更高的量子产率和更长的寿命。此外，钌-卟啉配合物可用作可见光在两种有机反应中的光催化剂：
• Some Organoperoxo Complexes of Tin(IV)
  作者：M. Tofazzal H. Tarafder、Wan M. Z. W. Yunus、Sidik Silong

  DOI：10.1071/c96141

  日期：——

  Some novel organoperoxo complexes of tin were prepared by the oxidative addition of dioxygen with Sn 2+. These are the first reported examples of this kind. The complexes isolated have the compositions [Sn(O2)2.2L], [Sn(O2)2L′], [Sn(O2)L′′2], [Sn(O2)C5H3N(COO)2H2O] and [Sn(O2)2L′′′] (L = pyridine, pyridine N-oxide, triphenylphosphine oxide, aniline; L′ = ethylenediamine, 2-aminopyridine, o-phenylenediamine; L′′ = pyridine-2-carboxylato, 2-aminophenolato, quinolin-8-olato, glycinato; L′′′ = diethylenetriamine and triethylenetetramine). The complexes were characterized by elemental analysis, conductivity measurements and infrared spectroscopic studies. None of these complexes showed oxygen transfer reactions. The ν1(O-O) stretching frequencies appear at 805-820 cm-1 , and are significantly insensitive to the choice of the coligands used. Extensive pp-dp bonding in the complexes renders absolute kinetic stability to the complexes.

  通过二氧与锡 2+ 的氧化加成，制备了一些新型的锡有机过氧配合物。 锡 2+ 与二氧的氧化加成反应制备了一些新型有机过氧配合物。这些是 报告的此类实例。分离出的络合物组成如下 [Sn（O2）2.2L]、 [Sn（O2）2L′]、 [Sn(O2)L′′2]、 [Sn(O2)C5H3N(COO)2H2O] 和 [Sn(O2)2L′′]。 (L = 吡啶、吡啶 N-氧化物、 三苯基膦氧化物、苯胺；L′ = 乙二胺、 2-氨基吡啶、邻苯二胺；L′′ = 2-aminophenolato, quinolin-8-olato、 二乙烯三胺和三乙烯四胺）。 三乙烯四胺）。复合物的特征是元素分析、 电导率测量和红外光谱研究。这些 络合物都没有发生氧转移反应。络合物的 ν1（O-O）伸展频率出现在 805-820 厘米-1，而且对选择使用的配体明显不敏感。 明显不敏感。配合物中广泛的pp-dp 键使配合物具有绝对的动力学稳定性。 络合物具有绝对的动力学稳定性。
• Cloning, DNA Sequence, Functional Analysis and Transcriptional Regulation of the Genes Encoding Dipicolinic Acid Synthetase Required for Sporulation in Bacillus subtilis
  作者：R.A. Daniel、J. Errington

  DOI：10.1006/jmbi.1993.1403

  日期：1993.7

  This suggested that the spoVF locus encoded dipicolinic acid synthetase, the enzyme thought to catalyse the single reaction needed to synthesise DPA from dihydroxydipicolinic acid, an intermediate in the lysine biosynthetic pathway. We have now cloned and sequenced the spoVF locus of Bacillus subtilis and show that it comprises two coordinately regulated genes, now designated dpaA and dpaB. Expression

  Dipicolinic acid（DPA）是一种小的极性分子，其在细菌内生孢子中积累至高浓度，并被认为在孢子耐热性或耐热性维持中起作用。先前的工作表明，枯草芽孢杆菌的spoVF基因座中的突变阻止了DPA的形成，并产生了对热敏感的孢子。在孢子发育过程中添加外源DPA导致了耐热性的恢复。这表明spoVF基因座编码了二吡啶甲酸合成酶，该酶被认为催化从赖氨酸生物合成途径的中间体二羟基二吡啶甲酸合成DPA所需的单一反应。现在，我们已经克隆和测序了枯草芽孢杆菌的spoVF基因座，并显示它包含两个协调调控的基因，现在命名为dpaA和dpaB。dpa操纵子片段在大肠杆菌中的表达表明，这两个基因产物共同确定了DPA合成酶的活性。dpa操纵子的启动子位于第一个基因的上游，已通过引物延伸分析进行了鉴定。该区域中的序列与由RNA聚合酶的σK形式识别的几个启动子具有很强的序列相似性。在芽孢形成开始后四小时检测到该启
• A Study on the Luminescent Terbium(III) and Pyridine 2,6 Dicarboxylate Complexes by Experimental and TD-DFT Approaches
  作者：Tugba Tugsuz、Dilek Yüksel、Elmas Gökoğlu、Serdar Ateş

  DOI：10.1007/s10895-022-03130-x

  日期：——

  results denote that the tris complex; [Tb(dpa)3]3− is the most stable form at pH > 5.3. Molecular absorption spectra of tris complex shows a batho-chromic shift of 222 nm of dpa2− band to 232 nm accompanied by the hyper-chromic effect at 272 nm band. The luminescence intensities at 490, 545, 592 and 620 nm are enhanced over 100 times in tris complex. The coordination of complexes calculated by thermodynamic

  通过使用实验光谱技术和理论时间相关密度泛函理论 (TD-DFT) 计算，Tb 3+发光通过在水相中作为其吡啶 2,6 二羧酸盐 (dpa 2− ) 复合物形成而得到增强。Tb 3+离子与 dpa 2−离子的荧光滴定在 λ ext /λ ems = 310/490 nm 和 310/545 nm处进行 ，其发射强度针对配体与金属离子的摩尔比作图 [ dpa 2−的摩尔数/Tb 3+的摩尔数]。实验结果表明tris复合体；[Tb(dpa) 3 ] 3−是 pH > 5.3 时最稳定的形式。tris 复合物的分子吸收光谱显示 dpa 2−波段的 222 nm 红移至 232 nm，并伴有 272 nm 波段的增色效应。在 tris 络合物中，490、545、592 和 620 nm 处的发光强度增强了 100 多倍。通过热力学循环计算配合物的配位并支持实验结果，发现最稳定的形式是九配位的三配合物；[Tb(dpa)]
• Programmed Self-Assembly of Copper(II)-L- and -D-Arginine Complexes with Aromatic Dicarboxylates to Form Chiral Double-Helical Structures
  作者：Nayumi Ohata、Hideki Masuda、Osamu Yamauchi

  DOI：10.1002/anie.199605311

  日期：1996.3.4