Crystal structure of diazido-dimethanolato-bis(μ₂-2-(((3-oxidopropyl)imino)methyl)phenolato-κ⁴ O:O,O′,N)dimanganese(III), C₂₂H₂₈Mn₂N₈O₆

Abstract

The title crystal structure is shown in the figure. Tables 1 and 2 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters. Source of materialsSalicylaldehyde (0.122 g, 1.0 mmol), tris(hydroxymethyl) aminomethane (0.121 g, 1.0 mmol) and triethylamine (0.101 g, 1.0 mmol) were dissolved in methanol (25 mL), forming a yellow solution. Mn(NO 3 ) 2 ·6H 2 O (0.144 g, 0.5 mmol) and sodium azide (0.076 g, 1 mmol) were successively added to the solution with stirring. The resulting dark brown suspension was heated at 65°C for 3 h and the color slowly changed to browne. After filtration, the brown filtrate was sealed in a beaker and kept undisturbed at room temperature. The dark-green needle-shaped crystals were isolated after one week (Yield: 75% based on Mn). Experimental detailsH atoms were generated geometrically and refined as riding atoms with C-H = 0.93 Å and U iso (H) = 1.2 times Ueq(C) for H atoms, with C-H = 0.97 Å and U iso (H) = 1.2 times Ueq(C) for methylene H atoms. CommentDesign and synthesis of polynuclear transition metal aggregates have attracted great interest not only because of