Mononuclear copper(II) complexes with a tetradentate pyrazole based ligand: Syntheses, structures, DNA binding study and antimicrobial activity

Synthesis and the characterization of Schiff-base copper complexes: Reactivity with DNA, 4-NPP and BNPP

“…The biochemical activity of copper in many biological systems makes it a good choice for use as chemotherapeutic drug [7,8]. During the past few decades, several copper complexes have been synthesized and studied for their interaction with DNA [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. Metal complex-DNA interactions can be classified as intercalation, electrostatic binding, covalent binding and hydrolytic cleavage.…”

Zinc(II) and Cadmium(II) complexes with N4-coordinate pyrazole based ligand: Syntheses, characterization and structure

“…N,N-diethyl-N 0 ,N 0 -bis((3,5-dimethyl-1H-pyrazol-1-yl)-methyl)ethane-1,2-diamine (dbdmp) was synthesized according to the reported method [31]. M(ClO 4 ) 2 Á6H 2 O [(M = Zn(II) and…”

“…As a part of our research on synthesis, characterization and and the structure determination of transition metal complexes with pseudohalides and pyrazole based ligand, we have reported mononuclear and binuclear nickel(II) complexes and mononuclear copper(II) complexes with pseudohalides and substituted pyrazole based ligand [30,31]. In this paper we report on the syntheses, characterization and structures of zinc(II) and cadmium(II) complexes with pseudohalies like azide/thiocyanate or isocyanate and tetradentate N 4 -coordinate pyrazole based ligand N,Ndiethyl-N 0 ,N 0 -bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)ethane-1,2-diamine (dbdmp).…”

Ternary complexes of copper(II) and cobalt(II) involving nitrite/pyrazole and tetradentate N4-coordinate ligand: Synthesis, characterization, structures and antimicrobial activity

“…There are many reports on tripodal ligands based on nitrogen containing 28 heterocyclic molecules such as pyrazole and their transition metal complexes [7][8][9][10][11][12][13]. Pyrazole presence of tripodal ligands [14][15][16][17][18][19][20][21][22]. Although pseudohalides are known for their versatile 35 coordination modes, mostly they behave as monodentate ligand and formed mononuclear 36 complexes with N 4 -coodrinate tetradentate ligand [19,21] and only in few cases it behave as 37 ambidentate ligand and formed binuclear complexes [20,22].…”

“…Pyrazole presence of tripodal ligands [14][15][16][17][18][19][20][21][22]. Although pseudohalides are known for their versatile 35 coordination modes, mostly they behave as monodentate ligand and formed mononuclear 36 complexes with N 4 -coodrinate tetradentate ligand [19,21] and only in few cases it behave as 37 ambidentate ligand and formed binuclear complexes [20,22]. Now we are interested to see 38 coordination mode and geometry of the molecule when azide / thiocanate / isocyanate ion is 39 replaced by nitrito or pyrazole ion in presence of same tetradentate ligand dbdmp and 40 transition metal ions like copper(II) and cobalt(II).…”