酢酸モリブデン(II)二量体

酢酸モリブデン(II)二量体 価格

酢酸モリブデン(II)二量体 化学特性,用途語,生産方法

• 外観

  淡黄色～黄褐色、結晶性粉末～粉末

• 使用上の注意

  アルゴン封入

• 説明

  Molybdenum (II) acetate is a coordination compound with the formula Mo₂(O₂CCH₃)₄. It is a yellow, diamagnetic, air-stable solid that is slightly soluble in organic solvents. Molybdenum(II) acetate is an iconic example of a compound with a metal-metal quadruple bond.

• 化学的特性

  yellow to greenish needle-like crystals or

• 物理的性質

  Molybdenum (II) Acetate adopts the same Chinese lantern structure as related acetate dimers such as rhodium (II) acetate, copper (II) acetate, and chromium (II) acetate. Each Mo(II) center in Mo2(O2CCH3)4 has four d valence electrons. These eight d-electrons form one σ, two π bonds, and one δ bond, creating a bonding electron configuration of σ2π4δ2. Each of these bonds are formed by the overlapping of pairs of d orbitals.The four acetate groups bridge the two metal centers. The Mo-O bond between each Mo(II) center and O atom from acetate has a distance of 2.119 Å, and the Mo-Mo distance between the two metal centers is 2.0934 Å.

• 使用

  Molybdenum(II) acetate dimer is generally used as an intermediate compound in a process to form other quadruply bonded molybdenum compounds.

• 製造方法

  Mo₂(O₂CCH₃)₄is prepared by treating molybdenum hexa carbonyl (Mo (CO)₆) with acetic acid. The process strips CO ligands from hexacarbonyl results in the oxidation of Mo (0) to Mo (II).
  2 Mo(CO)₆ + 4 HO₂CCH₃ → Mo₂(O₂CCH₃)₄ + 12 CO + 2 H₂
  Trinuclear clusters are byproducts.
  The reaction of HO₂CCH₃ and Mo(CO)₆ was first investigated by Bannister et al. in 1960. At the time, quadruple metal-metal bonds had not yet been discovered, so these authors proposed that "Mo(O₂CCH₃)₂ was tetrahedral. This perspective changed with Mason's characterization .

• 主な応用

  Mo₂(O₂CCH₃)₄ is generally used as an intermediate compound in a process to form other quadruply bonded molybdenum compounds The acetate ligands can be replaced to give new compounds such as [Mo₂Cl₈]^4- and Mo₂Cl₄[P(C₄H₉)₃]₄.

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