Oxidation of o-phenylenediamine to 2,3-diaminophenazine in the presence of cubic ferrites MFe2O4 (M = Mn, Co, Ni, Zn) and the application in colorimetric detection of H2O2

Date

2018-09-01

Author

Vetr, Fahime
Moradi-Shoeili, Zeinab
Özkar, Saim

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

148
views

0
downloads

Metal ferrites nanocrystallites, MFe2O4 (M = Mn, Co, Ni, Zn) were prepared by coprecipitation method and characterized by a combination of physico-chemical and spectroscopic techniques. MFe2O4 nanoparticles having particle size in the range 10-35 nm were tested as catalysts in the oxidation of o-phenylenediamine (OPD) to 2,3-diaminophenazine (DAP) using hydrogen peroxide as oxidant at room temperature. Kinetic data was collected for the catalytic oxidation of OPD to DAP by monitoring the UV-vis absorbance at 415 nm and fit well to the Michaelis-Menten model yielding kinetic parameters K-m (Michaelis-Menten constant) and V-max (maximum rate of reaction). MnFe2O4 nanoparticles provide the highest catalytic activity in the oxidation of OPD to DAP at room temperature. A colorimetric method was developed based on the MnFe2O4/OPD system for the detection of H2O2 in reaction solution. The method has a detection limit of 30 mu M for H2O2 and wide linear range.

Subject Keywords

Inorganic Chemistry, General Chemistry

URI

https://hdl.handle.net/11511/47856

Journal

APPLIED ORGANOMETALLIC CHEMISTRY

DOI

https://doi.org/10.1002/aoc.4465

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Synthesis of novel norephedrine-based chiral ligands with multiple stereogenic centers and their application in enantioselective addition of diethylzinc to aldehyde and chalcone Unaleroglu, C; Aydin, AE; Demir, Ayhan Sıtkı (Elsevier BV, 2006-03-06) Novel norephedrine-based chiral ligands with multiple stereogenic centers were conveniently prepared from norephedrine and N-substituted pyrrole. These novel chiral ligands were used to catalyze the enantioselective addition of diethylzinc to aldehydes and to chalcone in high yields and with good to high enantioselectivities. The absolute configuration of products was found to be affected by the stereogenic centers on the norephedrine part of the novel chiral ligands.
Coupling of ferrocenyl chromium carbene complex with cyclobutenediones Zora, Metin; Bekir Peynircioglu, N. (Elsevier BV, 2002-08-15) The coupling of ferrocenyl chromium carbene complex with cyclobutenediones leads to ferrocenyl-substituted 5-alkylidenefuranones and 4-cyclopentene-1,3-diones, methyl ferrocenoate and acetylferrocene in varying amounts. The scope and limitations of these processes are investigated. In comparison with the phenyl analog, ferrocenyl chromium carbene complex has been found to be less reactive. This is also supported by PM3 calculations. The coupling of ferrocenyl chromium carbene complex with cyclobutenediones...
Synthesis of novel chiral bisoxazoline ligands with a norbornadiene backbone: use in the copper-catalyzed enantioselective Henry reaction Delikus, Rabia; Cakir, Emine; DEMİREL, NADİR; Balcı, Metin; KARATAŞ, BETÜL (The Scientific and Technological Research Council of Turkey, 2016-01-01) Novel chiral bisoxazoline ligands based on norbornadiene were synthesized and used for the asymmetric Henry reaction. Various aromatic aldehydes were converted into chiral beta-nitro alcohols with high yields and moderate to acceptable enantioselectivities under the optimized reaction conditions.
Synthesis of beta-chloro-alpha-aminophosphonate derivatives via the regioselective ring opening of unactivated aziridine-2-phosphonates Polat-Cakir, Sidika; BEKSULTANOVA, Nurzhan; Doğan, Özdemir (Informa UK Limited, 2018-12-02) A series of unactivated racemic and chiral aziridine-2-phosphonates were synthesized by modified Gabriel-Cromwell reaction. Ring opening reaction of the synthesized phosphonates by gaseous HCl provided access to a wide range of biologically interesting novel beta-chloro-alpha-aminophosphonates. All reactions toward each of the above-mentioned products can be conducted regioselectively in high yields.
Synthesis and mesophase properties of block and random co-polymers of electroactive and liquid crystalline monomers Yilmaz, F; Kasapoglu, F; Hepuzer, Y; Yagci, Y; Toppare, Levent Kamil; Fernandes, EG; Galli, G (Informa UK Limited, 2005-01-01) Homo-polymers and random co-polymers of electroactive and liquid crystalline monomers, namely 3-thienylmethyl methacrylate (MTM) and 6-(4-cyanobiphenyl-4'-oxy)hexyl acrylate (LC6), were prepared by conventional free radical polymerization. Block co-polymers of MTM and LC6 were also synthesized by using the 1,1-diphenylethene (DPE) method. The obtained random and block co-polymers exhibited liquid crystal behavior depending on the content of the LC6 units. It was found that microphase separation of the polym...

Citation Formats

F. Vetr, Z. Moradi-Shoeili, and S. Özkar, “Oxidation of o-phenylenediamine to 2,3-diaminophenazine in the presence of cubic ferrites MFe2O4 (M = Mn, Co, Ni, Zn) and the application in colorimetric detection of H2O2,” APPLIED ORGANOMETALLIC CHEMISTRY, pp. 0–0, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47856.