Wydział Chemii

Elaheh Pousaneh

Somayeh Sadighian

Rahman Bikas

Hassan Hosseini-Monfared

Ahmad Sousaraei

Miłosz Siczek

Tadeusz Lis

2020

Journal of Molecular Structure

1199

127023/1-127023/10

10.1016/j.molstruc.2019.127023

Naukowa

Angielski

Artykuł

A new dinuclear Mn(III) complex, [Mn₂(L)₂(CH₃OH)₂] (1), was synthesized by one-pot reaction of 2-aminobenzoylhydrazide, salicylaldehyde and Mn(OAc)₂·4H₂O in methanol (H₃L = (E)-N'-(2-hydroxybenzylidene)-2-((E)-(2-hydroxybenzylidene)amino)benzohydrazide). The obtained compound was characterized by elemental analysis, spectroscopic methods, thermogravimetric analysis (TGA) and single crystal X-ray studies. Structural studies indicated that a ditopic O,N,O- and O,N-dichelating hydrazone ligand is obtained by in-situ condensation of 2-aminobenzoylhydrazide with salicylaldehyde which simultaneously is coordinated to two manganese(III) ions as trianionic ligand, (L)^3-. During the formation of complex, Mn(II) is oxidized to Mn(III) by aerial oxygen and the Mn(III) ions have distorted octahedral geometry. The spectroscopic and structural properties of complex 1 were further studied by DFT calculations. DFT calculations on complex 1 indicated that the experimental geometric parameters and spectroscopic data are in the reasonable range obtained by theoretical studies.

Dinuclear manganese complex, In-situ reaction, crystal structure, DFT calculation, spectroscopic studies

http://dx.doi.org/10.1016/j.molstruc.2019.127023

http://www.elsevier.com