Synthesis and characterization of a manganese(III) schiff base complex and exploration of Br···Br interaction in the solid state structure of the complex

Abstract

A mononuclear manganese(III) complex, [MnL(CH₃OH)(H₂O)]ClO₄, has been synthesized and structurally characterized {H₂L = N,N'-bis(5-bromo-3-methoxysalicylidene)2,2-dimethyl-1,3-propanediamine}. The energetic features of significant supramolecular interactions present in the complex, i.e. Br···Br, hydrogen-bonding and π···π stacking interactions, have been calculated using DFT calculations and further corroborated with NCI plot index computational tool. Catalase mimicking activity (catalytic decomposition of hydrogen peroxide into oxygen and water) of the complex has been investigated. The complex catalyzes the decomposition of hydrogen peroxide effectively in solution. The efficiency of the complex toward catalytic decomposition of hydrogen peroxide is related to its structure.

Keywords:

• Manganese(III)
• crystal structure
• type I Br···Br interactions
• catalytic decomposition of hydrogen peroxide

Acknowledgements

K. G. expresses his gratitude to UGC, India, for awarding a Senior Research Fellowship. S.C. gratefully acknowledges UGC-CAS II programme, Department of Chemistry, Jadavpur University, India for financial support. A.F. acknowledges financial support from the FEDER/Spanish Ministry of Science, Innovation and Universities (MCIU)-Spanish State Research Agency (AEI) through project CTQ2017-85821-R.

Disclosure statement

No potential conflict of interest was reported by the author(s).