| 1222194-45-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• CAS: 1222194-45-7
• 化学式: C₂₀H₂₆Mg₂O₁₅S₁₂
• 分子量: 939.819
• InChiKey: IKEWQNMHMJLEOJ-UHFFFAOYSA-J

反应信息

• 作为产物：
  描述：

  2-[4,5-bis(methylthio)-1,3-dithiol-2-ylidene]-1,3-dithiol-4,5-dicarboxylate disodium salt 在 magnesium(II) nitrate hexahydrate 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 以60%的产率得到
  参考文献：
  名称：

  Calcium and Magnesium Bicarboxylates Combined with Tetrathiafulvalene Moiety

  摘要：

  Four coordination compounds of calcium and magnesium with tetrathiafulvalene (TTF) bicarboxylate ligand have been synthesized and characterized by single-crystal analysis. As well-studied bicarboxylate complexes, the carboxylate groups in this ligand coordinate to alkaline earth metal ions in multidentate modes forming compounds 1-4. Calcium compounds [CaL(DMF)(2)] (1) and [Ca2L2(H2O)(2)(EtOH)]center dot MeOH (2) take a seven-coordinated sphere with a pentagonal bipyramid geometry, while magnesium compounds [Mg2L2(H2O)(7)]center dot EtOH center dot 4H(2)O (3) and [Na-2(DMF)(2)(H2O)(9)][MgL2(DMF)(2)] (4) are six-coordinated with an elongated octahedral geometry. The effect of metal ion radii on the coordination structure is clearly exhibited. The molecules of these alkaline-earth metal complexes are assembled to a sandwiched structure with hydrophobic layers of a sulfur-rich TTF matrix and hydrophilic layer of the metal carboxylate. Equilibriums of the metal coordination, acid dissociation, and ligand oxidation have been studied in the solution systems of these compounds. At a neutral state of the TTF moiety, TTF-carboxylate is an appropriate ligand for Ca(II) ion, but when the TTF moiety is oxidized, it switches the alkaline earth metal ion to the solution.

  DOI：

  10.1021/cg901018s