Synthesis, Characterization, and Catalytic Studies of Mn(III)-Schiff Base-Dicyanamide Complexes: Checking the Rhombicity Effect in Peroxidase Studies
Joint Authors
Fernández-García, M. Isabel
González-Riopedre, Gustavo
Maneiro, Marcelino
Bermejo, Manuel R.
Carballido, Rocío
González-Noya, Ana M.
Rodríguez-Silva, Laura
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-16
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The condensation of 3-methoxy-2-hydroxybenzaldehyde and the diamines 1,2-diphenylendiamine, 1,2-diamine-2-methylpropane and 1,3-propanediamine yielded the dianionic tetradentate Schiff base ligands N,N′-bis(2-hydroxy-4-methoxybenzylidene)-1,2-diphenylendiimine (H2L1), N,N′-bis(2-hydroxy-4-methoxybenzylidene)-1,2-diamino-2-methylpropane (H2L2) and N,N′-bis(2-hydroxy-4-methoxybenzylidene)-1,3-diaminopropane (H2L3) respectively.
The organic compounds H2L1 and H2L2 have been characterized by elemental analysis, IR, 1H and 13C NMR spectroscopies and mass spectrometry electrospray (ES).
The crystal structure of H2L2 in solid state, solved by X-ray crystallography, is highly conditioned in the solid state by two N-H•••N intramolecular interactions.
The synthesis of three new manganese(III) complexes 1–3, incorporating these ligands, H2L1–H2L3, and dicyanamide (DCA), is reported.
The complexes 1–3 have been physicochemically characterized by elemental analysis, IR and paramagnetic 1H NMR spectroscopy, ESI mass spectrometry, magnetic moment at room temperature and conductivity measurements.
Complex 1 has been crystallographically characterized.
The X-ray structure shows the self-assembly of the Mn(III)-Schiff base-DCA complex through µ-aquo bridges between neighbouring axial water molecules and also by π-π stacking interactions, establishing a dimeric structure.
The manganese complexes were also tested as peroxidase mimics for the H2O2-mediated reaction with the water-soluble trap ABTS, showing complexes 1-2 relevant peroxidase activity in contrast with 3.
The rhombicity around the metal ion can explain this catalytic behaviour.
American Psychological Association (APA)
Bermejo, Manuel R.& Carballido, Rocío& Fernández-García, M. Isabel& González-Noya, Ana M.& González-Riopedre, Gustavo& Maneiro, Marcelino…[et al.]. 2017. Synthesis, Characterization, and Catalytic Studies of Mn(III)-Schiff Base-Dicyanamide Complexes: Checking the Rhombicity Effect in Peroxidase Studies. Journal of Chemistry،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1171985
Modern Language Association (MLA)
Bermejo, Manuel R.…[et al.]. Synthesis, Characterization, and Catalytic Studies of Mn(III)-Schiff Base-Dicyanamide Complexes: Checking the Rhombicity Effect in Peroxidase Studies. Journal of Chemistry No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1171985
American Medical Association (AMA)
Bermejo, Manuel R.& Carballido, Rocío& Fernández-García, M. Isabel& González-Noya, Ana M.& González-Riopedre, Gustavo& Maneiro, Marcelino…[et al.]. Synthesis, Characterization, and Catalytic Studies of Mn(III)-Schiff Base-Dicyanamide Complexes: Checking the Rhombicity Effect in Peroxidase Studies. Journal of Chemistry. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1171985
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171985