2 research outputs found
Anion-Controlled Assembly of Four Manganese Ions: Structural, Magnetic, and Electrochemical Properties of Tetramanganese Complexes Stabilized by Xanthene-Bridged Schiff Base Ligands
The reaction of manganeseĀ(II) acetate with a xanthene-bridged
bisĀ[3-(salicylideneamino)-1-propanol]
ligand, H<sub>4</sub>L, afforded the tetramanganeseĀ(II,II,III,III)
complex [Mn<sub>4</sub>(L)<sub>2</sub>(Ī¼-OAc)<sub>2</sub>],
which has an incomplete double-cubane structure. The corresponding
reaction using manganeseĀ(II) chloride in the presence of a base gave
the tetramanganeseĀ(III,III,III,III) complex [Mn<sub>4</sub>(L)<sub>2</sub>Cl<sub>3</sub>(Ī¼<sub>4</sub>-Cl)Ā(OH<sub>2</sub>)], in
which four Mn ions are bridged by a Cl<sup>ā</sup> ion. A pair
of L ligands has a propensity to incorporate four Mn ions, the arrangement
and oxidation states of which are dependent on the coexistent anions
Anion-Controlled Assembly of Four Manganese Ions: Structural, Magnetic, and Electrochemical Properties of Tetramanganese Complexes Stabilized by Xanthene-Bridged Schiff Base Ligands
The reaction of manganeseĀ(II) acetate with a xanthene-bridged
bisĀ[3-(salicylideneamino)-1-propanol]
ligand, H<sub>4</sub>L, afforded the tetramanganeseĀ(II,II,III,III)
complex [Mn<sub>4</sub>(L)<sub>2</sub>(Ī¼-OAc)<sub>2</sub>],
which has an incomplete double-cubane structure. The corresponding
reaction using manganeseĀ(II) chloride in the presence of a base gave
the tetramanganeseĀ(III,III,III,III) complex [Mn<sub>4</sub>(L)<sub>2</sub>Cl<sub>3</sub>(Ī¼<sub>4</sub>-Cl)Ā(OH<sub>2</sub>)], in
which four Mn ions are bridged by a Cl<sup>ā</sup> ion. A pair
of L ligands has a propensity to incorporate four Mn ions, the arrangement
and oxidation states of which are dependent on the coexistent anions