Synthesis, structural characterization, and catalytic reduction study of Co(II) complex towards toxic organic compounds; nitrophenol, and nitroaniline

Authors

Aml Saleh, Chemistry Department, Faculty of Science (Girl’s), Al-Azhar University, Youssif Abbas St., Nasr-City, Cairo, Egypt.Follow
Abeer Faheim, Chemistry Department, Faculty of Science (Girl’s), Al-Azhar University, Youssif Abbas St., Nasr-City, Cairo, Egypt.Follow
Omayma Mostafa, Chemistry Department, Faculty of Women for Arts, Science, and Education, Ain Shams University, Cairo, EgyptFollow
Zeinab Abdelwahab, Chemistry Department, Faculty of Science (Girl’s), Al-Azhar University, Youssif Abbas St., Nasr-City, Cairo, Egypt.Follow
Aida Salman, Chemistry Department, Faculty of Science (Girl’s), Al-Azhar University, Youssif Abbas St., Nasr-City, Cairo, Egypt.Follow

Corresponding Author

Saleh, Aml

Document Type

Original Article

Subject Areas

Chemistry

Keywords

Synthesis; Characterization; Catalytic reduction; Nitrophenol; nitroaniline

Abstract

This work demonstrates the synthesis of Co(II) complex of a new imine ligand incorporated sulfonamide, and coumarin moiety. The ligand and its complex were characterized by elemental analysis, IR, 1HNMR, mass, UV-Vis spectroscopy, molar conductance, magnetic susceptibility and thermal gravimetric analysis (TGA-DTG). According to the spectral analysis, the ligand, HL acts as a multidente donor coordinating through NONO donor sites. The Co(II) complex has tetrahedral geometry, and non-electrolytic in nature. The thermodynamic parameters as activation energy, enthalpy of activation, entropy of activation, and free energy of activation were determined via the thermal analysis. Furthermore, the ability of Co(II) complex as a catalyst was examined toward the reduction of nitrophenol, and nitroaniline in presence of NaBH4 as a reducing agent at room temperature. The results achieved in this investigation are valuable, and paves the way to use the metal complexes derived from heterocyclic organic compounds as catalysts for industrial applications.

How to Cite This Article

Saleh, Aml; Faheim, Abeer; Mostafa, Omayma; Abdelwahab, Zeinab; and Salman, Aida (2021) "Synthesis, structural characterization, and catalytic reduction study of Co(II) complex towards toxic organic compounds; nitrophenol, and nitroaniline," Al-Azhar Bulletin of Science: Vol. 32: Iss. 2, Article 10.
DOI: https://doi.org/10.21608/absb.2021.94121.1135