[Zn(bis(1,3,7,9-tetramethyl-2-ethyldipyrrolylmethen-8-yl)methane(-2H))]2 | 316366-47-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: [Zn(bis(1,3,7,9-tetramethyl-2-ethyldipyrrolylmethen-8-yl)methane(-2H))]2
• 英文别名: Zn2(bis(2,4,7,9-tetramethyl-8-ethyldipyrrolylmethen-3-yl)methane(-2H))2
• CAS: 316366-47-9；340711-66-2
• 化学式: C₆₂H₇₆N₈Zn₂
• 分子量: 1064.12
• InChiKey: GFUOGDXANHKSRR-FWXOVABJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  [Zn(bis(1,3,7,9-tetramethyl-2-ethyldipyrrolylmethen-8-yl)methane(-2H))]2 在 air 作用下， 以 neat (no solvent) 为溶剂， 生成 zinc(II) oxide
  参考文献：
  名称：

  Thermal decomposition of dinuclear double-helical 3,3′-bis(dipyrrinato)zinc(II) complexes in air and argon

  摘要：

  The thermal destruction of dinuclear double-helical 3,3'-bis(dipyrrinato)zinc(II) complexes [Zn2L2] was investigated. The compounds demonstrated good thermal stability (up to 440 degrees C) in argon and (up to 222 degrees C) in air. Thermal stability of [Zn2L2] is greatly determined by changing of the number and the nature of substituents in the terminal pyrrole cycles and meso-spacer of 3,3'-bis(dipyrrolylmethene) ligands. The influence of molecule structure and medium nature on the thermal properties and perspective directions of complexes practical use are discussed. (c) 2012 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.tca.2012.06.016
• 作为产物：
  描述：

  bis(1,3,7,9-tetramethyl-2-ethyldipyrrolylmethen-8-yl)methane dihydrobromide 、 zinc(II) acetate dihydrate 在 (C₂H₅)3N 作用下， 以 甲醇 、 氯仿 为溶剂， 以84.7%的产率得到[Zn(bis(1,3,7,9-tetramethyl-2-ethyldipyrrolylmethen-8-yl)methane(-2H))]2
  参考文献：
  名称：

  Characteristic features of formation, synthesis, and properties of binuclear zinc(II) helicates with alkyl-substituted 3,3′-bis(dipyrrolylmethenes)

  摘要：

  On the basis of spectrophotometric studies, it was demonstrated that complexation of hydrobromides of seven alkylated 3,3'-bis(dipyrrolylmethenes) (H2L center dot 2HBr) with zinc(II) acetate dihydrate in DMF (298.15 K) includes successive steps of formation of binuclear helicates of two types: [Zn-2(AcO)(2)L] (heteroleptic single-helix complex) and [Zn2L2] (homoleptic double-helix complex). An increase in the degree of alkylation of the pyrrole rings of the ligands from 4 to 10 methyl groups induces an increase of overall complexation constants from 7.60 to 13.73. The synthesis of helicates [Zn2L2] was described. The products were studied by elemental analysis and IR, H-1 NMR, U/Vis, and fluorescence spectroscopy. The effect of the helicand structure and the solvent nature on the chromophore and fluorescence properties of [Zn2L2] was discussed. The kinetic stability of zinc(II) with decamethyl-substituted 3,3'-bis(dipyrrolylmethene) in HCl-DMF medium was estimated.

  DOI：

  10.1134/s0036023611120242

文献信息

• Regularities of the formation of binuclear homo- and heteroleptic complexes of d metals with 3,3′-bis(dipyrrolylmethenes) in DMF
  作者：N. A. Dudina、E. V. Antina、G. B. Guseva

  DOI：10.1134/s1070328411040026

  日期：2011.5

  spectrally revealed in solutions containing a ligand excess (c H 2 L / c M(AcO) 2 > 1). An increase in the salt concentration shifted the system of equilibria to the homoligand product [M2L2]. The thermodynamic constants of the reactions increased in the series of complexing agents: Cu(II) < Cd(II) < Hg(II) < Ni(II) < Co(II) < Zn(II). An analysis of the data on the thermodynamic constants of [M2L2] helicate

  通过分光光度法研究了七个对称的烷基化四齿配体3,3'-双（二吡咯基亚甲基）（H 2 L）与d-金属乙酸盐（M（AcO）2）在DMF溶液中在298.15 K下的反应。发现Helicands H2L在结构上经过预组织，可以与Co（II），Ni（II），Cu（II），Zn（II），Cd（II）和Cd（II）形成稳定的双核均二螺旋[M 2 L 2 ]。乙酸汞（II）。金属离子对配体的配位包括形成杂配[M 2 L（AcO）2 ]和纯配[M 2 L 2 ]络合物的连续步骤。[M 2 L（AcO）2在含有过量配体（c H 2 L / c M（AcO） 2 > 1）的溶液中光谱揭示了]配合物。盐浓度的增加将平衡系统转移至高配体产物[M 2 L 2 ]。反应的热力学常数在一系列络合剂中增加：Cu（II）