Hafizur Rahman

Synthesis, Characterization and In-vitro Antibacterial Activity Studies of Oxovanadium (IV) Complexes of α-Amino Acid Schiff Bases and 1,10-Phenanthroline Ligands

Muhammad Atique Hasan, Hafizur Rahman, Md. Masuqul Haque & Md. Nazrul Islam · Asian Journal of Chemical Sciences · 2024

Oxovanadium(IV) complexes of the type [VO(L)(phen)] (VO-1 to VO-5) have been synthesized and characterized by FTIR and UV-Vis spectra, molar conductance,  melting points, and magnetic susceptibilities measurements, where L= N-salicylidene-β-alanine (sal-ala), N-salicylidene-glyci...

Open access Research Article 10.9734/ajocs/2024/v14i5324

Oxovanadium (IV) Complexes of α-Amino Acid Schiff Bases and Polypyridyl Ligands: Synthesis, Characterization and Antimicrobial Activity

Muhammad Atique Hasan, Hafizur Rahman, Md. Masuqul Haque & Md. Nazrul Islam · Asian Journal of Chemical Sciences · 2024

Oxovanadium(IV) complexes of the type [VO(L)(bpy)] (V-1 to V-5) have been synthesized and characterized by FTIR and UV-Vis spectra, molar conductance, melting points, and magnetic susceptibilities measurements, where L= N-salicylidene-β-alanine (sal-ala), N-salicylidene-glycine (...

Open access Research Article 10.9734/ajocs/2024/v14i2290

Mixed Ligand Complexes of Ni2+, Cu2+ and Zn2+ Ions Containing N-(4-methoxybenzylidene)isonicotinohydrazone Schiff Base and 1,10-Phenanthroline : Synthesis, Characterization, Antimicrobial and Antioxidant Properties

Md. Ashrafuzzaman, Farzana Khanm Camellia, Md. Delwar Hossain, Md. Golam Mostafiz Shovon, Hafizur Rahman, Md. Tanvir Hossain, Md. Hafijur Rahman, Md. Kudrat-E-Zahan & Md. Masuqul Haque · Asian Journal of Chemical Sciences · 2023

N-(4-methoxybenzylidene) isonicotinohydrazone (L1) Schiff base ligand was prepared by the condensation reaction of isonicotinic acid hydrazide (INH) and 4-methoxybenzaldehyde. A series of metal complexes of Ni2+, Cu2+ and Zn2+  ions was synthesized with Schiff base ligand (primar...

Open access Research Article 10.9734/ajocs/2023/v13i6262

Synthesis, Characterization, Antibacterial and Antioxidant Activities of Cu(II), Ni(II), and Zn(II) Mixed Ligand Complexes Containing Isoniazid Based Bidentate Schiff Base

Md. Ashrafuzzaman, Farzana Khanm Camellia, Md. Hafijur Rahman, Md. Delwar Hossain, Md. Tanvir Hossain, Hafizur Rahman, Md. Golam Mostafiz Shovon, Gobindo Kumar Paul, Md. Kudrat-E-Zahan & Md. Masuqul Haque · Asian Journal of Chemical Sciences · 2023

Two mixed ligands (L1, L2), L1 = N-(4-methoxybenzylidene) isonicotinohydrazone, L2 = 2-aminophenol, and their metal (Cu2+, Ni2+, and Zn2+) complexes with stoichiometry (1:1:1) were synthesized and characterized by analytical and physico-chemical techniques such as conductivity, m...

Open access Research Article 10.9734/ajocs/2023/v13i5258