Research Article

Palladium complexes of NO type Schiff bases: synthesis, characterization and antioxidant activities

Volume: 42 Number: 1 March 29, 2021
EN

Palladium complexes of NO type Schiff bases: synthesis, characterization and antioxidant activities

Abstract

The reaction of o-aminophenol with para hydroxy and methoxy substituted benzaldehydes yielded two Schiff bases. These Schiff bases functioning precursors were turned into palladium complexes by treating palladium acetate. The structural formulas based on spectral methods (elemental analysis, FT-IR spectroscopy, NMR spectroscopy and QTOF-LC/MS spectroscopy) were suggested for obtained both complexes. According to the structural characterization methods, one of the complexes had also an acetate co-ligand along with the hydroxy substituted Schiff base ligand. In the other complex, the palladium central ion was proposed to be coordinated with two methoxy substituted Schiff bases. Besides, DPPH scavenging activities of the all synthesized compounds were determined and compared to well-known antioxidant standards. According to the results, antioxidant activities of the palladium complexes was mild but lower than parent Schiff bases. 

Keywords

Schiff base, o-aminophenol, DPPH scavenging activity, palladium complex, spectroscopic methods

References

  1. [1] Baran T., Mentes A., Polymeric material prepared from Schiff base based on o carboxymethyl chitosan and its Cu(II) and Pd(II) complexes, J. Mol. Struct., 1115 (2016) 220-227.
  2. [2] Nair B.P., Gangadharan D., Mohan N., Sumathi B., Nair P.D., Hybrid scaffold bearing polymer-siloxane Schiff base linkage for bone tissue engineering, Mater. Sci. Eng. C., 52 (2015) 333-342.
  3. [3] Erdem E., Yildirim Sari E., Kilincarslan R., Kabay N., Synthesis and characterization of azo-linked Schiff bases and their nickel(II), copper(II), and zinc(II) complexes, Trans. Met. Chem., 34 (2009) 167-174.
  4. [4] Ispir E., The synthesis, characterization, electrochemical character, catalytic and antimicrobial activity of novel, azo-containing Schiff bases and their metal complexes, Dyes Pigments, 82 (2009) 13-19.
  5. [5] Fakhari A.R., Khorrami A.R.,Naeimi H., Synthesis and analytical application of a novel tetradentate N2O2 Schiff base as a chromogenic reagent for determination of nickel in some natural food samples, Talanta, 66 (2005) 813-817.
  6. [6] Laddha P.R., Biyani K.R., Synthesis and Biological Evaluation of Novel Schiff Bases of Aryloxy Moiety, J. Drug Deliv., 9 (2005) 44-49.
  7. [7] Dewangan D., Nakhate K.T., Verma V.S., Nagori K., Tripathi D.K., Synthesis, Characterization, and Screening for Analgesic and Anti‐Inflammatory Activities of Schiff Bases of 1,3,4‐Oxadiazoles Linked With Quinazolin‐4‐One, J. Heterocycl. Chem., 54 (2017) 3187-3194.
  8. [8] Amorim C.R., Pavani T.F.A., Lopes A.F.S., Duque M.D., Mengarda A.C.A., Silva M.P., de Moraes J., Rando D.G.G., Schiff bases of 4-Phenyl-2-Aminothiazoles as hits to new antischistosomals: Synthesis, in vitro, in vivo and in silico studies, Eur. J. Pharm. Sci., 150 (2020) 105-371.
  9. [9] Kumar B.D., Rawat D.S., Synthesis and antioxidant activity of thymol and carvacrol based Schiff bases, Bioorg. Med. Chem. Lett., 23 (2013) 641-645.
  10. [10] Albayrak Kastas C., Kastas G., Guder A., Gur M., Muglu H., Buyukgungor O., Investigation of two o-hydroxy Schiff bases in terms of prototropy and radical scavenging activity, J. Molec. Struct., 1130 (2017) 623-632.
APA
Şenocak, A., & Akbaş, H. (2021). Palladium complexes of NO type Schiff bases: synthesis, characterization and antioxidant activities. Cumhuriyet Science Journal, 42(1), 68-74. https://doi.org/10.17776/csj.824566
AMA
1.Şenocak A, Akbaş H. Palladium complexes of NO type Schiff bases: synthesis, characterization and antioxidant activities. CSJ. 2021;42(1):68-74. doi:10.17776/csj.824566
Chicago
Şenocak, Ayşegül, and Hüseyin Akbaş. 2021. “Palladium Complexes of NO Type Schiff Bases: Synthesis, Characterization and Antioxidant Activities”. Cumhuriyet Science Journal 42 (1): 68-74. https://doi.org/10.17776/csj.824566.
EndNote
Şenocak A, Akbaş H (March 1, 2021) Palladium complexes of NO type Schiff bases: synthesis, characterization and antioxidant activities. Cumhuriyet Science Journal 42 1 68–74.
IEEE
[1]A. Şenocak and H. Akbaş, “Palladium complexes of NO type Schiff bases: synthesis, characterization and antioxidant activities”, CSJ, vol. 42, no. 1, pp. 68–74, Mar. 2021, doi: 10.17776/csj.824566.
ISNAD
Şenocak, Ayşegül - Akbaş, Hüseyin. “Palladium Complexes of NO Type Schiff Bases: Synthesis, Characterization and Antioxidant Activities”. Cumhuriyet Science Journal 42/1 (March 1, 2021): 68-74. https://doi.org/10.17776/csj.824566.
JAMA
1.Şenocak A, Akbaş H. Palladium complexes of NO type Schiff bases: synthesis, characterization and antioxidant activities. CSJ. 2021;42:68–74.
MLA
Şenocak, Ayşegül, and Hüseyin Akbaş. “Palladium Complexes of NO Type Schiff Bases: Synthesis, Characterization and Antioxidant Activities”. Cumhuriyet Science Journal, vol. 42, no. 1, Mar. 2021, pp. 68-74, doi:10.17776/csj.824566.
Vancouver
1.Ayşegül Şenocak, Hüseyin Akbaş. Palladium complexes of NO type Schiff bases: synthesis, characterization and antioxidant activities. CSJ. 2021 Mar. 1;42(1):68-74. doi:10.17776/csj.824566