trans(R,S)-{Co(III)(1,9-diamino-3,7-diazanonane)Cl2} chloride*HCl | 134025-73-3

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: trans(R,S)-{Co(III)(1,9-diamino-3,7-diazanonane)Cl2} chloride*HCl
• CAS: 134025-73-3
• 化学式: C₇H₂₀Cl₂CoN₄*ClH*Cl
• 分子量: 362.076
• InChiKey: POMPZMZYIIWQKT-UHFFFAOYSA-K

反应信息

• 作为反应物：
  描述：

  trans(R,S)-{Co(III)(1,9-diamino-3,7-diazanonane)Cl2} chloride*HCl 、 sodium perchlorate 在 silver nitrate 作用下， 以 水 为溶剂， 生成 β-{hexafluoroacetylacetonato(1,9-diamino-3,7-diazanonane)cobalt(III)} (perchlorate)2
  参考文献：
  名称：

  Preparation and the pH dependent reversible color change of complexes of cobalt(III) and chromium(III) with a hexafluoroacetylacetonato ligand

  摘要：

  Thirteen complexes of Co(III) and Cr(III) with a hexafluoroacetylacetonato (hfac) ligand were newly prepared as perchlorate salts. These are CoL(hfac)2+ with L = (tn)2, tren, beta-2,3,2-tet, beta-3,2,3-tet, (EtNH2)4, (n-PrNH2)4, (n-BuNH2)4, (bpy)2, (phen)2; and CrL(hfac)2+ with L = (NH3)4, (tn)2, alpha-2,3,2-tet, 3,2,3-tet. In these complexes the ligand L occupies four coordination sites and the hfac ligand acts as a bidentate. Aqueous or methanolic solutions of these complexes show a pH dependent rapid and reversible color change; orange in an acid and violet in a base. The origin of this chromism may be a covalent hydration equilibrium, where a lyate anion forms a sigma-bond with one of the carbonyl carbon atoms of the coordinating hfac ligand. The equilibrium constant in water is 2 approximately 12 x 10(6) M-1 for Co(III) complexes and 1 approximately 6 x 10(10) M-1 for Cr(III) complexes (M = mol dm-3).

  DOI：

  10.1016/s0020-1693(00)88131-1