Optoelectronic, Photocatalytic and Biological studies of Mixed ligand Cd(II) Complex and its Fabricated CdO Nanoparticles.

2021 ◽  
pp. 130917
Author(s):  
B.R. Kirthan ◽  
M.C. Prabhakara ◽  
H.S. Bhojyanaik ◽  
R. Viswanath ◽  
P.H. Amith Nayak
Keyword(s):  
Mixed Ligand ◽  
Biological Studies ◽  
Cdo Nanoparticles

scholarly journals Synthesis, Spectroscopic, and Biological Studies of Mixed Ligand Complexes of Gemifloxacin and Glycine with Zn(II), Sn(II), and Ce(III)

Molecules ◽  
2018 ◽  
Vol 23 (5) ◽  
pp. 1182 ◽  
Author(s):  
Shimaa Sakr ◽  
Hazem Elshafie ◽  
Ippolito Camele ◽  
Sadeek Sadeek
Keyword(s):  
Mixed Ligand ◽  
Mixed Ligand Complexes ◽  
Biological Studies

scholarly journals Spectral and Biological Studies on New Mixed Ligand Complexes

2018 ◽  
Vol 10 (3) ◽  
pp. 291-302
Author(s):  
T. K. Pal ◽  
M. A. Alam ◽  
J. Hossen ◽  
S. Paul ◽  
H. Ahmad ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes ◽  
Diffusion Method ◽  
Molecular Formula ◽  
Geometrical Structures ◽  
Standard Drug ◽  
Agar Disc ◽  
Biological Studies ◽  
Dithiophosphinic Acid

In this study, new mixed ligand complexes have been prepared from bis(2,4,4-trimethylpentyl)dithiophosphinic acid (C16H35PS2) and 2,9-dimethyl-1,10-phenanthroline (C14H12N2) with various metal(II) ions. The molecular formula of the metal complexes were [Mn(C16H34PS2)(C14H12N2)]Cl (1), [Fe(C16H34PS2)(C14H12N2)]Cl (2), [Co(C16H34PS2) (C14H12N2)]Cl (3), [Zn(C16H34PS2)(C14H12N2)]Cl (4) and [Cd(C16H34PS2)(C14H12N2)]Cl (5). These complexes have been characterized by various physico-chemical techniques such as melting point, molar conductance, magnetic susceptibility measurements as well as UV-Vis, IR, TG and mass spectroscopic analyses. The surface morphology was determined by scanning electron microscope (SEM). The magnetic moment value, color as well as spectral measurements suggested that the geometrical structures of the metal complexes were tetrahedral. The spectral data showed that bis(2,4,4-trimethylpentyl)dithiophosphinic acid and 2,9-dimethyl-1,10-phenanthroline ligands  acted as uninegative and neutral bidentate ligand, respectively. The obtained mixed ligand complexes were more stable in air and highly soluble in common organic solvent. The bio-efficacy of ligands and metal complexes have been screened against the test microorganism using agar disc diffusion method. The complex 4 showed potential antibacterial activity against Sterptococcus aureus as compared to standard drug, imipenem. On the other hand, the complex 3 also displayed more potent antifungal activity against Lecanicillium fungicola. Moreover, the complex 3 was also found to have better scavenging activity against 2,2-diphenyl-1-picrylhydrazyl.

scholarly journals Novel Low Spin Mixed Ligand Thiohydrazide Complexes of Iron(III): Synthesis, Spectral Characterization, Molecular Modeling, and Antibacterial Activity

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Dolan Sengupta ◽  
Snigdha Gangopadhyay ◽  
Sanchita Goswami ◽  
Arnab Dutta ◽  
Vikash Kumar ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Magnetic Susceptibility ◽  
Molecular Modeling ◽  
Antibacterial Properties ◽  
Mixed Ligand ◽  
Magnetic Susceptibility Data ◽  
Susceptibility Data ◽  
Octahedral Environment ◽  
Biological Studies ◽  
Iron Center

Mixed ligand complexes of Fe(III) with aromatic thiohydrazides of general composition [Fe(acac)(L)2] have been synthesized and characterized (acac-acetylacetonate, L = bidentate uninegative aromatic thiohydrazide ligand, for example, thiobenzhydrazide, 2-hydroxythiobenzhydrazide, furan-2-thiohydrazide, and thiophen-2-thiohydrazide). The magnetic susceptibility data and the EPR spectra of these complexes suggested the formation of rhombically distorted low spin iron center (d5) in octahedral environment, which was also supported by the UV-vis spectral data of the complexes. Biological studies of these complexes also indicated that the iron-thiohydrazido complexes have superior antibacterial properties compared to the corresponding ligands.

scholarly journals Synthesis, characterisation and biological studies of mixed-ligand nickel (II) complexes containing imidazole derivatives and thiosemicarbazide Schiff bases

2019 ◽  
Vol 1198 ◽  
pp. 126888 ◽  
Author(s):  
Nurul N.M. Ishak ◽  
Junita Jamsari ◽  
A.Z. Ismail ◽  
Mohamed I.M. Tahir ◽  
Edward R.T. Tiekink ◽  
...  
Keyword(s):  
Schiff Bases ◽  
Mixed Ligand ◽  
Imidazole Derivatives ◽  
Biological Studies

scholarly journals Synthesis, spectroscopic, biological activities and DFT calculations of nickel(II) mixed-ligand complexes of tridentate Schiff bases

2020 ◽  
Vol 45 (1) ◽  
pp. 18
Author(s):  
Abidemi Iyewumi Demehin ◽  
Mary Adelaide Oladipo ◽  
Banjo Semire
Keyword(s):  
Schiff Base ◽  
Schiff Bases ◽  
Elemental Analysis ◽  
Biological Activities ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes ◽  
Molar Ratio ◽  
Azomethine Nitrogen ◽  
Elemental Analysis Data ◽  
Biological Studies

Ni(II) mixed-ligand complexes of [NiLNH3] (where L= N-salicylidene-o-aminophenol (L1), N-(5-methoxysalicylidene-o-aminophenol) (L2) and N-(2-hydroxy-1-naphthalidene)-o-aminophenol) (L3) containing ONO tridentate Schiff bases and ammonia were synthesized and characterized by elemental analysis, infrared, ultraviolet-visible, proton and carbon-13 spectroscopies. Theoretical calculations were also performed on the optimized structures of the Ni(II) mixed-ligand complexes. The Infrared and ultraviolet-visible spectra of the complexes were calculated, and the results compared with the corresponding experimental spectra to augment the experimental structural identification. The elemental analysis data confirmed the formation of 1:1:1 [metal: Schiff base: ammonia] molar ratio. The NMR spectra showed that the Schiff bases coordinated to the Ni(II) ion via the two deprotonated phenolic oxygen and azomethine nitrogen atoms. The biological studies showed that the complexes exhibited higher antibacterial and antioxidant activities than the free Schiff base ligands.

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