cis-3,5-bis-[2-pyridinyleneamin]-trans-hydroxycyclohexane | 866940-28-5

• 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: cis-3,5-bis-[2-pyridinyleneamin]-trans-hydroxycyclohexane
• 英文别名: r-1-hydroxy-t-3,t-5-bis([(2-pyridinyl)methylene]amino)cyclohexane；cis-3,5-bis[2-pyridinyleneamino]-trans-hydroxycyclohexane
• CAS: 866940-28-5
• 化学式: C₁₈H₂₀N₄O
• 分子量: 308.383
• InChiKey: FOQPCVOUCDHWFN-PIIMJCKOSA-N

反应信息

• 作为反应物：
  描述：

  Zn(OTf)_2*6H₂O 、 cis-3,5-bis-[2-pyridinyleneamin]-trans-hydroxycyclohexane 以 甲醇 为溶剂， 以85%的产率得到[Zn(DDOP)(H2O)(OTf)](OTf)
  参考文献：
  名称：

  Anion control of isomerism, crystal packing and binding properties in a mononuclear zinc complex

  摘要：

  The coordination chemistry of the tetradentate pyridyl N-donor ligand cis-3,5-bis-[2-pyridinyleneamin]-trans-hydroxycyclohexane(DDOP) has been investigated with zinc(II) nitrate and trillate. The resulting complexes, [Zn(DDOP)(H2O)(NO3)](NO3) (1), and [Zn(DDOP)(H2O)(OTf)](OTf) (2) differ not only in their counterions, but also the arrangement of the axial ligands and their solid state hydrogen bonded networks. Isothermal titration calorimetry was used to assess the difference in binding properties exhibited by the two zinc complexes at physiological pH in an aqueous environment. A series of coordinating amino acids were found to preferentially bind to the mononuclear zinc triflate (1) complex over the corresponding nitrate (2) assembly, with histidine exhibiting a two centre binding mode. (c) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2006.06.044

文献信息

• [CoxCu1−x(DDOP)(OH2)(NO3)](NO3): hydrogen bond-driven distortion of cobalt(ii) by solid solution ‘network mismatch’
  作者：John Fielden、De-Liang Long、Manfred Speldrich、Paul Kögerler、Leroy Cronin

  DOI：10.1039/c2dt11055e

  日期：——

  1 (5), and 0.7 (6). For 4, structural and magnetochemical analysis indicate that the geometry of the octahedral Co(II) complex distorts to match that of the dominant Jahn–Teller distorted Cu(II) center. Magnetic susceptibility data of octahedral Co(II) are sensitive to ligand geometry distortions and have been analyzed accordingly, comparing 4 to the reference systems 1 and 2. Bond valence calculations

  四齿N-供体配体顺式-3,5-双[（2-吡啶烯氨基）-反式-羟基环己烷（DDOP）的后第一行过渡金属硝酸盐配合物采用单阳离子[M（DDOP）（H 2 O） （NO 3）] +结构（M = Co，1 ; Cu，2 ; Zn，3），其中DDOP配体占据赤道平面，该络合物基本上是同构且同构的，允许Co（II）和Cu（II）配合物在混合金属固溶体中以[Co x Cu 1- x（DDOP）（NO 3）（H 2O）]（NO 3），其中x = 0.4（4），0.1（5）和0.7（6）。对于4，结构和磁化学分析表明，八面体Co（II）配合物的几何畸变与占主导地位的Jahn–Teller畸变的Cu（II）中心相匹配。八面体Co（II）的磁化率数据对配体几何畸变敏感，因此已经进行了分析，将4与参考系统1和2进行了比较。键价计算已用于估计六个氢键网络的相对稳定性，这表明采用最稳定的氢键网络有助于Co（II）配位
• Metal‐Dependent Formation of Mononuclear Complexes and M ₂ L ₂ Mesocates with Schiff‐Base Ligands
  作者：John Fielden、De‐Liang Long、Cameron Evans、Leroy Cronin

  DOI：10.1002/ejic.200600367

  日期：2006.10

  AbstractThe coordination chemistry of the tetradentate pyridylN‐donor ligands r‐1‐hydroxy‐t‐3,t‐5‐bis[(2‐pyridinyl)methylene]amino}cyclohexane (DDOP) and r‐1‐hydroxy‐t‐3,t‐5‐bis[(E)‐(6‐methyl‐2‐pyridinyl)methylene]amino}cyclohexane(DDMOP) has been investigated with the d10 metal centres silver(I) and cadmium(II). These conformationally flexible ligands offer two coordination modes; either a mononucleating tetradentate coordination pocket or a bridging bis(bidentate) chelate. Hence, reaction with CdII produced six‐coordinate mononuclear complexes whose compositions were determined by X‐ray crystallography as [Cd(DDOP)(NO3)2] (1) and [Cd(DDMOP)(Cl)2]·MeOH (2), while AgI led to the four‐coordinate dinuclear mesocate structures [Ag(DDOP)}2](CF3SO3)2 (3) and [Ag(DDMOP)}2](CF3SO3)2·0.5MeOH (4). It is thought that the mononuclear, octahedral complexes in the case of zinc(II) and cadmium(II) result from the energetic stabilisation gained through two extra coordinate bonds, while in the case of silver(I) the lower propensity of the metal centre for six‐coordination causes the ligand to retain its energetically preferred dinucleating conformation and to form the mesocates. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)