hexa-aquacobalt(III) | 15275-05-5

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属有机体
• 英文名称: hexa-aquacobalt(III)
• 英文别名: hexaaquacobalt(III)(3+)；hexaaquacobalt(III)；Cobalt(3+);hexahydrate
• CAS: 15275-05-5
• 化学式: CoH₁₂O₆
• 分子量: 167.085
• InChiKey: SZVWFEVRDOMFNX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -4.95
• 重原子数：
  7
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  6
• 氢给体数：
  6
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  hexa-aquacobalt(III) 、 bis(1,4,7-triazacyclononane)nickel(II) perchlorate 以 not given 为溶剂， 生成 bis(1,4,7-triazacyclononane)nickel(III)
  参考文献：
  名称：

  三（1,10-菲咯啉）钴（II）和对苯二酚在水性介质中还原肟肟络合物的动力学研究

  摘要：

  已对还原镍（IV）双肟，双（6-氨基-3-甲基-4-氮杂双环-3-烯-2-酮肟）镍（IV），[Ni（L 3）2 ] 2+和一个镍（III）单肟（15-氨基-3-甲基-4,7,10,13-四氮杂萘并-3-烯-2-酮肟）镍（III） ，[Ni（L 1）] 2+，使用[Co（phen）3 ] 2+（phen = 1,10-菲咯啉）和对苯二酚（H 2 quin）的物质，以及对[Ni II（HL 1）] 2+使用[镍III（L 4）2 ] 3+（L 4＝ 1,4,7-三氮杂环壬烷）。反应在pH范围4–8内进行，并且由于质子不依赖于与Co II还原速率有关的速率，因此可以区分涉及质子相关平衡物的镍络合物和对苯二酚的途径。使用马库斯相关性已经确定了自交换率。对于一元肟，对于去质子化的偶，[Ni III（L 1）] 2+ – [Ni II（L 1）] +， k exc· =（4±2）×10 2 dm 3 mol–1

  DOI：

  10.1039/dt9880002279
• 作为产物：
  描述：

  hexaaquacobalt(II) 以 高氯酸 为溶剂， 生成 hexa-aquacobalt(III)
  参考文献：
  名称：

  Ferrer, Miguel; Llorca, Jordi; Martinez, Manuel, Journal of the Chemical Society, Dalton Transactions, 1992, # 1.2, p. 229 - 232

  摘要：

  DOI：

文献信息

• Decomposition of hexaaquacobalt(III) in perchloric acid
  作者：Grant W. Wangila、Robert B. Jordan

  DOI：10.1016/j.ica.2005.10.035

  日期：2006.3

  The reaction of Co(OH2)(6)(3+) with water has been studied in 1.0 M HClO4/LiClO4 at 25 degrees C. The reaction is biphasic, showing an initial increase and then decrease in absorbance at 325 and 605 nm. The rate of increase depends on (Co(OH2)(6)(3+)](2) and [H+](-2), while the decrease has an [H+](-1) dependence. The [H+](-2) and [H+](-1) dependence for the absorbance increase and decrease, respectively, may be accounted for by hydrolysis equilibria of Co(OH2)(6)(3+) and oligomeric species. The calculated values for k(1)K(1) and k(2)K(2) that fit the data are 3.5 x 10(-3) s(-1) and 3.2 x 10(-3) M s(-1), respectively, where K-1 is the hydrolysis constant of Co(OH2)(6)(3+), k(1) is the rate for the absorbance increase, K-2 represent the hydrolysis constant for the oligomer and k(2), the rate constants for the absorbance decrease. (c) 2005 Elsevier B.V. All rights reserved.
• Reaction of hydrogen peroxide with hexaaquacobalt(III) perchlorate
  作者：Grant W. Wangila、Robert B. Jordan

  DOI：10.1016/j.ica.2006.03.005

  日期：2006.7

  The reaction of Co(OH2)(6) (3+) with H2O2 in 1.0 M HClO4/LiClO4 was found to be first-order in both reactants and the [H+] dependence of the second-order rate constant is given by k(2obs) = b/[H+], b at 25 degrees C is 26.4 +/- 0.5 s(-1). The rate law shows a simple inverse dependence on [H+] that is consistent with a rapidly maintained equilibrium between Co(OH2)(6)(3+) and its hydrolyzed form Co(H2O)(5)(OH)(2+), followed by the rate controlling step, i.e. oxidation of H2O2 by Co(H2O)(5)(OH)(2+). (c) 2006 Elsevier B.V. All rights reserved.
• Budholia, Dinesh Chandra; Sthapak, J. K., Journal of the Indian Chemical Society, 1983, vol. 60, p. 404 - 406
  作者：Budholia, Dinesh Chandra、Sthapak, J. K.

  DOI：——

  日期：——
• A convenient source of hexaaquacobalt(III)
  作者：Grant Wangila、R.B. Jordan

  DOI：10.1016/s0020-1693(02)01236-7

  日期：2003.1

  A convenient preparation and full characterization, including a crystal structure, of green, crystalline [Co(NH3)(6)][Co(CO3)(3)] is reported. This salt can be treated at 0 degreesC with aqueous solutions of HClO4, HNO3 or CF3SO3H to give CO2(g), the corresponding insoluble salt of Co(NH3)(6)(3+) and aqueous Co(OH2)(6)(3+). This reaction provides ready access to solutions of Co(OHZ)(6)(3+) in a wide range of concentrations and acidities. (C) 2002 Elsevier Science B.V. All rights reserved.
• Kinetic studies of the reduction of hexaaquacobalt(III) perchlorate by a cobaloxime, [Co(dmgBF2)2(H2O)2]
  作者：Grant W. Wangila、Robert B. Jordan

  DOI：10.1016/j.ica.2005.06.064

  日期：2005.9

  The reaction of Co(OH2)(6)(3+) with Co(dmgBF(2))(2)(H2O)(2) in 1.0 M HClO4/LiClO4 was found to be first-order in both reactants and the [H+] dependence of the second-order rate constant is given by k(2obs) = b/[H+], b at 25 degrees C is 9.23 +/- 0.14 x 10(2) s(-1). The [H+] dependence at lower temperatures shows some saturation effect that allowed an estimate of the hydrolysis constant for Co(OH2)(6)(3+) as K-a = 9.5 x 10(-3) M at 10 and 15 degrees C. Marcus theory and the known self-exchange rate constant for Co(OH2)(5)OH2+/+ were used to estimate an electron self-exchange rate constant of k(22) = 1.7 x 10(-4) M-1 S-1 for Co(dmgBF(2))(2)(H2O)(2)(+/0). (c) 2005 Elsevier B.V. All rights reserved.