[Pb(quinoline-2-carboxylate)₂]_n | 127519-64-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: [Pb(quinoline-2-carboxylate)₂]_n
• 英文别名: Pb(quinoline-2-carboxylic acid)₂；[Pb(Q-2-c)₂]_n；quinoline-2-carboxylic acid ; lead (II)-salt；[Pb(2-quinolinecarboxylate)2]；[Pb(2-quc)2]；Chinolin-2-carbonsaeure; Blei(II)-Salz
• CAS: 127519-64-6
• 化学式: 2C₁₀H₆NO₂*Pb
• 分子量: 551.526
• InChiKey: ZSXOEWMQXCFKCC-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  0.22
• 重原子数：
  14.0
• 可旋转键数：
  1.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  53.02
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  [Pb(quinoline-2-carboxylate)₂]_n 以 neat (no solvent, solid phase) 为溶剂， 生成 lead(II) oxide
  参考文献：
  名称：

  Ultrasonic-assisted synthesis of nano-structured lead(II) coordination polymers as precursors for preparation of lead(II) oxide nanoparticles

  摘要：

  Crystalline and nano-structures of two novel Pb(II) coordination polymers, [Pb-2(2-pyr)(4)(MeOH)](n) (1), {2-Hpyr = 2-pyrazinecarboxylic acid} and [Pb(2-quc)(2)](n) (2), {2-Hquc = 2-quinolinecarboxylic acid} are synthesized via thermal gradient and sonochemical methods, respectively. X-ray diffraction is used to clarify the structure of the single crystals of the newly synthesized 1 and 2 polymers. The nano-structured polymers are also characterized via X-ray powder diffraction (XRD), scanning electron microscopy (SEM), IR spectroscopy and elemental analysis. The thermal stability of both crystalline and nanostructured 1 and 2 coordination polymers is closely investigated via thermal gravimetric (TGA) and differential thermal analyses (DTA), and the results are compared to show the effect of particle size on thermal stability of complexes. The compounds are then heated to 600 degrees C to produce PbO nano-particles. The resulting PbO is characterized through XRD and SEM analyses. Interestingly, PbO nanoparticles with different morphology and size are produced from calcination of the two coordination polymers. (C) 2012 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2012.04.024
• 作为产物：
  描述：

  Lead(2+);quinoline-2-carboxylate;acetate 以 水 为溶剂， 生成 [Pb(quinoline-2-carboxylate)₂]_n
  参考文献：
  名称：

  How the two factors of concentration and ultrasonic wave power affect on formation of kinetically or thermodynamically stable lead(II) complex nano-structures

  摘要：

  The reaction between quinoline-2-carboxylic acid (HQ) and lead(II) acetate trihydrate (Pb(OAc)(2)center dot 3H(2)O) results in formation of kinetically stable and thermodynamically stable [Pb-2(Q)(2)(OAc)(2)](n) (1) and [Pb(Q)(2)](n) (2), respectively. Compound 1 (kinetically stable) was formed in aprotic solvent of acetonitrile and is stable in it. We evaluated the reaction between HQ and Pb(OAc)(2)center dot 3H(2)O in two different ultrasonic baths and investigated the effect of initial reagents concentration on morphology and kind of resulting products. The resulting samples were characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analyses. Although these reactions were performed in acetonitrile, only in two samples compound 1 was synthesized. Thus in other four samples, the resulting products were compound 2. Indeed, ultrasonic waves with ultra-high energy could change the kinetically stable 1 to thermodynamically stable 2 in acetonitrile. With the highest 0.1 M concentration of initial precursors, only thermodynamically stable product (2) obtained in both of two ultrasonic baths. In lower concentrations of initial precursors (0.025 M and 0.05 M), the kind of resulting product attributed to the type of ultrasonic bath and its wave power and frequency. (C) 2014 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.ica.2014.08.003

文献信息

• Solid- and solution-state structural transformations in flexible lead(ii) supramolecular polymers
  作者：Kamran Akhbari、Ali Morsali

  DOI：10.1039/c3ce41171k

  日期：——

  Reversible solid-state structural transformations of [Pb2(Q-2-c)2(OAc)2(MeOH)2]n (1) and [Pb2(Q-2-c)2(OAc)2(EtOH)2]n (2) to [Pb2(Q-2-c)2(OAc)2]n (3) have been observed upon thermal desolvation of coordinated MeOH (in 1) and EtOH (in 2) molecules. In addition, irreversible solution-state structural transformations of compounds 1, 2 and 3 to [Pb(Q-2-c)2]n (4) have been observed in H2O. Unlike protic solvents, immersion of 1 and 2 in aprotic solvent results in formation of 3.

  在配位的 MeOH（在 1 中）和 EtOH（在 2 中）分子热脱溶后，观察到[Pb2(Q-2-c)2(OAc)2(MeOH)2]n (1) 和 [Pb2(Q-2-c)2(OAc)2(EtOH)2]n (2) 向 [Pb2(Q-2-c)2(OAc)2]n (3) 的可逆固态结构转变。此外，还观察到化合物 1、2 和 3 在 H2O 中发生了不可逆的溶液态结构转变，生成了 [Pb(Q-2-c)2]n (4)。与质子溶剂不同，将 1 和 2 浸入非沸腾溶剂中会生成 3。