nickel(II) (1,4,8,11-tetraazacyclotetradecane) bis(acetonitrile) | 103129-01-7

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: nickel(II) (1,4,8,11-tetraazacyclotetradecane) bis(acetonitrile)
• CAS: 103129-01-7
• 化学式: C₁₄H₃₀N₆Ni
• 分子量: 341.122
• InChiKey: FYRJSGZGBYYMDW-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  (1,4,8,11-tetraazacyclotetradecane)nickel(II) perchlorate 、 乙腈 以 乙腈 为溶剂， 生成 nickel(II) (1,4,8,11-tetraazacyclotetradecane) bis(acetonitrile)
  参考文献：
  名称：

  乙腈溶液中一些镍（II）四胺的立体化学研究

  摘要：

  通过Evans NMR磁化率法在-40至80°C的乙腈溶液中确定几种镍（II）四胺配合物与乙腈之间加合物形成的平衡。发现顺磁性配体的加合物形成的配体的稳定性顺序为：2,2,2-tet，3,3,3-tet> 3,2,3-tet> 2,3,2-春节>仙客来。此顺序与先前研究在水溶液中发现的顺序相似。但是，在这项研究中，发现焓因子占主导地位，而据报道，在水溶液中，焓因子和熵因子的大小相当。在25–65°C的温度下，在0.01 M的络合物的乙腈溶液中进行了200–1500 nm的光学研究。除了2,3,2-tet（468 nm），3,2,3-tet（450 nm）和cyclam（460 nm）配合物外，随温度仅观察到光带强度和位置的微小变化。 。这些指示带随温度升高而增加，这可以通过假设与磁化率数据一致的方平面（反磁性）-八面体（顺磁性）平衡来解释。乐队分配了顺式和每个配合物的反八面体异构体。发现该配合物的顺-八面体特征的顺序为2

  DOI：

  10.1016/s0020-1693(00)86452-x

文献信息

• The chemical dynamics of 1,4,8,11-tetraazacyclotetradecane nickel(II) perchlorate with several solvents. I. Thermodynamics of base adduct formation
  作者：Gerald S. Vigee、Charles L. Watkins、H.F. Bowen

  DOI：10.1016/s0020-1693(00)93448-0

  日期：1979.1

  Abstract A solvent adduct study of 1,4,8,11-tetraazacyclotetradecane nickel(II) perchlorate with the coordinating solvents acetonitrile, N,N-dimethylformamide (DMF), methyl sulfoxide (DMSO), and water by optical and nmr techniques is reported. The thermodynamic parameters ΔH°, ΔS°, and K eq for adduct formation are given for each solvent system. At 25 °C, the stability order is found to be DMF > CH

  摘要报道了通过光学和核磁共振技术研究1,4,8,11-四氮杂十四环十四烷高氯酸镍（II）与配位溶剂乙腈，N，N-二甲基甲酰胺（DMF），甲基亚砜（DMSO）和水的溶剂加合物。 。对于每种溶剂体系，给出了用于加合物形成的热力学参数ΔH°，ΔS°和K eq。在25°C下，发现稳定性顺序为DMF> CH 3 CN> DMSO> H 2O。比较了观察到的稳定性顺序以及通过单次光学测量和溶剂浓度预测的稳定性。
• Intramolecular hydrogen-bond formation in nickel(II) complexes with macrocyclic ligands containing non-co-ordinating nitrogen atom(s): new ditopic receptors differentiating hydrogensulfate and hydrogenphosphates
  作者：Lyudmila V. Tsymbal、Sergey V. Rosokha、Yaroslaw D. Lampeka

  DOI：10.1039/dt9950002633

  日期：——

  A comparative study of a series of nickel(II) complexes with structurally related tetradentate 14-membered tetra-, penta- and hexa-aza macrocycles has shown that the non-co-ordinating (remote) nitrogen atoms in the ligand backbones drastically influence the solution equilibria between the four-and six-co-ordinated forms of the complexes. This phenomenon is interpreted in terms of the formation of intramolecular. along with co-ordinative, hydrogen bonds between the axial ligand and remote nitrogen. Such specific two-centred interactions result in relatively high formation constants of mono(hydrogensulfate) complexes [NiL(HSO4)(H2O)](+). For the tricyclic complex, with L = 1,3,6,9,11,14-hexaazatricyclo[l2.2.1.1(6,9)]octadecane, the formation of both mono- and bis-(hydrogensulfate) adducts has been detected with K-1 = 7 +/- 1 and K-2 = 36 +/- 5 dm(3) mol(-1), thus indicating the allosteric effect in this system. The high differentiating effect for hydrogensulfate versus hydrogenphosphates, which is especially evident for the tricyclic complex, has been established.