scholarly journals Physico-Chemical Characterization and Biological Screening of Cyanex 302 complexes

2012 ◽  
Vol 4 (2) ◽  
pp. 427 ◽  
Author(s):  
T. K. Pal ◽  
M. A. Alam ◽  
M. A. A. A. A. Islam ◽  
S. R. Paul
Keyword(s):  
Metal Complexes ◽  
Magnetic Measurements ◽  
Chemical Characterization ◽  
Molar Conductance ◽  
Mass Determination ◽  
Ir Studies ◽  
Cyanex 302 ◽  
Physico Chemical ◽  
Uv Visible ◽  
Antibacterial And Antifungal

Several new complexes of Cr(III), Mn(II), Fe(II), Co(II) and Cu(II) containing Cyanex 302 [bis(2,4,4-trimethylpentyl) monothiophosphinic acid] were synthesized and characterized by elemental analysis, molar conductance, molecular mass determination, magnetic, UV-Visible and IR studies. The prepared metal complexes has the compositions: 2. [CrL3].H2O, 3. K[MnL3].H2O, 4. [FeL2].H2O, 5. K[CoL3] and 6. K[CuL3].H2O (Where, L means anion of bis(2,4,4-trimethylpentyl) monothiophosphinic acid). The complexes 2, 3, 5 and 6 are assumed to have octahedral geometries, but the complex 4 is tetrahedral based on experimental data. From magnetic measurements all the complexes are found to be paramagnetic. Measured molar conductance showed that the complexes 2 and 4 are non-electrolytes and complexes 3, 5 and 6 are electrolytes. Besides, some metal complexes have shown very good antibacterial and antifungal activities.Keywords:  Bis(2,4,4-trimethylpentyl) monothiophosphinic acid; Biological activity.© 2012 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi: http://dx.doi.org/10.3329/jsr.v4i2.9366 J. Sci. Res. 4 (2), 427-435 (2012)

scholarly journals Physico-chemical characterization and biological screening of metal complexes with Cyanex 301

1970 ◽  
Vol 34 (2) ◽  
pp. 153-161 ◽  
Author(s):  
Tarun Kumar Pal ◽  
Md Ashraful Alam ◽  
Suchitra Rani Paul
Keyword(s):  
Metal Complexes ◽  
Magnetic Measurements ◽  
Chemical Characterization ◽  
Molar Conductance ◽  
Spectral Studies ◽  
Antibacterial And Antifungal Activities ◽  
Physico Chemical ◽  
Dithiophosphinic Acid ◽  
Cyanex 301 ◽  
Antibacterial And Antifungal

New metal complexes of Mg(II), VO(II), Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Pd(II) with cyanex 301(L) i.e., bis(2,4,4-trimethylpentyl) dithiophosphinic acid were synthesized. The complexes have been characterized by elemental analysis, molar conductivity, molecular mass determination, magnetic measurements, infrared and electronic spectral studies. The prepared metal complexes have the compositions: 2. [MgL2].H2O, 3. [VOL2], 4. K[MnL3].H2O, 5. [FeL3], 6. K[CoL3].H2O, 7. K[NiL3], 8. K[CuL3] and 9. [PdL2]. The complexes 2, 3 and 9 are assumed to have tetrahedral, square pyramidal and square planar geometries, respectively but the complexes 4 - 8 are octahedral based on experimental data. From magnetic measurements the complexes 2 and 9 are found to be diamagnetic and others are paramagnetic. Measured molar conductance showed that the complexes 2, 3, 5 and 9 are non-electrolytes and rest are electrolytes. Besides, some complexes have shown good antibacterial and antifungal activities. Key words: Cyanex 301; Antibacterial; Antifungal; DMSO; Bis (2, 4, 4-trimethylpentyl) dithiophosphinic acid DOI: 10.3329/jbas.v34i2.6859Journal of Bangladesh Academy of Sciences, Vol. 34, No. 2, 153-161, 2010

scholarly journals Transition Metal Complexes of Methyl-quinolino[3,2-b][1,5]benzodiazepine and Methylquinolino [3,2-b][1,5]benzoxazepine: Synthesis, Characterisation and Antimicrobial Studies

2007 ◽  
Vol 4 (1) ◽  
pp. 39-45
Author(s):  
B. Basavaraju ◽  
H. S. Bhojya Naik ◽  
M. C. Prabhakara
Keyword(s):  
Antifungal Activity ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Molar Conductance ◽  
Antibacterial And Antifungal Activity ◽  
Magnetic Studies ◽  
H Nmr ◽  
Antimicrobial Studies ◽  
Uv Visible ◽  
Antibacterial And Antifungal

The synthesis and characterisation of title complexes of the ligand Methylquinolino[3,2-b][1,5]benzodiazepine (MQBD) and Methyl-quinolino[3,2-b][1,5]benzoxazepine (MQBO) are reported. The complexes have been characterized by elemental analysis, molar conductance, magnetic studies, IR,1H NMR and UV-visible studies. They have the stoichiometry [ML2Cl2] where M=Co(II)/Ni(II), L=MQBD/MQBO and [MLCl2] where M=Zn(II)/Cd(II), L=MQBD/MQBO. The antibacterial and antifungal activity of the metal complexes has been investigated.

scholarly journals Synthesis and Antimicrobial Screening of the Metal Complexes with Cyanex 302

2009 ◽  
Vol 1 (3) ◽  
pp. 647-654
Author(s):  
M. A. Alam ◽  
T. K. Pal
Keyword(s):  
Metal Complexes ◽  
Magnetic Measurements ◽  
Spectral Studies ◽  
Planar Geometry ◽  
Central Metal ◽  
Tetrahedral Geometry ◽  
Antifungal Activities ◽  
Antibacterial And Antifungal Activities ◽  
Cyanex 302 ◽  
Antibacterial And Antifungal

The synthesis and characterization of metal complexes of the Cyanex 302 [bis(2, 4, 4-trimethylpentyl) monothiophosphinic acid] are reported. The complexes have been characterized by elemental analyses, molar conductivity, molecular mass determination and magnetic measurements, infrared and electronic spectral studies. The antibacterial and antifungal activities of the ligand and metal complexes have also been investigated. They have the stoichiometry of the type 1. [MgL2].H2O, 2. [Ca L2].H2O, 3. [ZrOL2].H2O, 4. [FeL3] and 5. [NiL2]. Electronic spectral data and the magnetic moment values suggested the complexes 1 and 2 are tetrahedral geometry, while the complexes 3, 4 and 5 are square pyramidal, octahedral and square planar geometry around the central metal ions, respectively. Besides, magnetic susceptibility measurements of the complexes also revealed that complexes 1-3 and 5 are diamagnetic in nature, except complex 4, which is paramagnetic. The metal complexes showed stronger antibacterial and antifungal activities than the ligand.  Keywords: Antibacterial, antifungal; Bis(2, 4, 4-trimethylpentyl) mothiophosphinic acid; Cyanex 302. © 2009 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI: 10.3329/jsr.v1i3.2259              J. Sci. Res. 1 (3), 647-654 (2009) 

scholarly journals Transition Metal Complexes of Quinolino[3,2-b]benzodiazepine and Quinolino[3,2-b]benzoxazepine: Synthesis, Characterization, and Antimicrobial Studies

2007 ◽  
Vol 2007 ◽  
pp. 1-6 ◽  
Author(s):  
B. Basavaraju ◽  
Halehatty S. Bhojya Naik ◽  
Mustur C. Prabhakara
Keyword(s):  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Molar Conductance ◽  
Antibacterial And Antifungal Activity ◽  
Magnetic Studies ◽  
Antimicrobial Studies ◽  
Uv Visible ◽  
Antibacterial And Antifungal ◽  
Parent Ligand

The synthesis and characterization of title complexes of the ligand Quinolino[3,2-b]benzodiazepine (QBD) and Quinolino[3,2-b]benzoxazepine (QBO) are reported. The complexes have been characterized by elemental analysis, molar conductance, magnetic studies, IR,HNMR, and UV-visible studies. They have the stoichiometry [ML2C12], where M=Co(II)/Ni(II), L=QBD/QBO, and [MLC12], where M=Zn(II)/Cd(II), L=QBD/QBO. The antibacterial and antifungal activity of the metal complexes has been investigated. The complexes were found to have higher antimicrobial activity than the parent ligand.

scholarly journals Transition Metal Complexes of Omeprazole An Anti-Ulcerative Drug

2017 ◽  
Vol 36 (3) ◽  
pp. 31 ◽  
Author(s):  
Suman Malik ◽  
Supriya Das ◽  
Bharti Jain
Keyword(s):  
Magnetic Susceptibility ◽  
Metal Complexes ◽  
Analytical Data ◽  
Molar Conductance ◽  
Spectral Studies ◽  
X Ray Diffraction ◽  
Antibacterial And Antifungal Activities ◽  
Metal Ratio ◽  
Uv Visible ◽  
Antibacterial And Antifungal

Omeprazole (OME) is a proton pump inhibitor (PPI). PPI’s have enabled to improve the treatment of various acidpeptic disorders. OME is a weak base and it can form several complexes with transition and non-transitions metal ions. In the present paper, we are describing series of trantion metal complexes of omeprazole i.e.,5-methoxy-2[(4methoxy-3,5dimethyl-2-pyridinyl)methylsulfinyl]–1H–benzimidazole with CuII, MnII, CoII, NiII, FeII, ZnII and HgII. These complexes were characterized by elemental analysis, molar conductance, IR, NMR, magnetic susceptibility, UV-visible spectral studies, ESR, SEM and X-ray diffraction. Based on the above studies, the ligand behaves as bidentate O, N donor and forms coordinate bonds through C=N and S=O groups .The complexes were found to non-electrolytic in nature on the basis of low values of molar conductance . Analytical data and stochiometry suggest ligand metal ratio of 2:1 for all the complexes. Electronic Spectra and Magnetic susceptibility measurements reveal octahedral geometry for Mn(II),Co(II), Ni(II),Fe(II) and Cu(II) complexes and tetrahedral for Hg(II) and Zn(II) complexes. Ligands and their metal complexes have been screened for their antibacterial and antifungal activities against bacteria Pseudomonas, Staphylococcus Aureus and fungi Aspergillus niger and A. flavous.

scholarly journals Synthesis, Characterization and Antimicrobial Studies of N1-[(1E)-1-(2-Hydroxyphenyl) ethylidene]-2-oxo-2H-chromene-3-carbohydrazide and its Metal Complexes

2009 ◽  
Vol 6 (3) ◽  
pp. 615-624 ◽  
Author(s):  
K. Siddappa ◽  
K. Mallikarjun ◽  
Tukaram Reddy ◽  
M. Mallikarjun ◽  
C. V. Reddy ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Magnetic Susceptibility ◽  
Schiff Base ◽  
Metal Complexes ◽  
Molar Conductance ◽  
Tetrahedral Geometry ◽  
H Nmr ◽  
Antimicrobial Studies ◽  
Mononuclear Complexes ◽  
Uv Visible

A new complexes of the type ML, MʹL and M″L [where M=Cu(II), Co(II), Ni(II) and Mn(II), Mʹ=Fe(III) and M″=Zn(II), Cd(II) and Hg(II) and L=N1-[(1E)-1-(2-hydroxyphenyl)ethylidene]-2-oxo-2H-chromene- 3-carbohydrazide (HL)] Schiff base have been synthesized and characterized by elemental analysis, magnetic susceptibility, molar conductance, IR,1H NMR, UV-Visible and ESR data. The studies indicate the HL acts as doubly monodentate bridge for metal ions and form mononuclear complexes. The complexes Ni(II), Co(II), Cu(II) Mn(II) and Fe(III) complexes are found to be octahedral, where as Zn(II), Cd(II) and Hg(II) complexes are four coordinated with tetrahedral geometry. The synthesized ligand and its metal complexes were screened for their antimicrobial activity.

scholarly journals Physico-chemical and biological studies of Cu(II), Co(II) and Ni(II) complexes of an N4 coordinating ligand derived from diacetylbisethylenediamine and benzoic acid

2012 ◽  
Vol 77 (5) ◽  
pp. 627-637 ◽  
Author(s):  
Pal Singh ◽  
Nanda Srivastava
Keyword(s):  
Benzoic Acid ◽  
Metal Complexes ◽  
Magnetic Moment ◽  
Biological Activities ◽  
Molar Conductance ◽  
Planar Geometry ◽  
Cyclic Voltammetric Study ◽  
Biological Studies ◽  
Antibacterial And Antifungal

Mononuclear metal complexes of the type [ML1]Cl2 (where, M = = Cu(II), Co(II) or Ni(II) and L1 = ligand) were synthesized by the reaction of a new N4 coordinating ligand, derived from diacetylbisethylenediamine with benzoic acid, and the corresponding hydrated metal chloride salts. The metal complexes were characterized by elemental analysis, melting point determination, molar conductance and magnetic moment measurements, IR, UV-Vis, 1H- and 13C-NMR, and ESR spectroscopy. The ligand and all the metal complexes were stable in the solid state at room temperature. From the analytical and spectroscopic investigations, the stoichiometry of the complexes was found to be 1:1 (metal:ligand). Based on the electronic spectra and magnetic moment data, the metal complexes had a square planar geometry. The molar conductance values show the 1:2 electrolytic nature of the metal complexes. A cyclic voltammetric study of the Cu(II) metal complex has also performed, which showed one electron quasi-reversible reduction around -0.92 to -1.10 V. In vitro biological activities of the ligand and metal complexes was checked against two bacteria Bacillus subtilis and Escherichia coli and two fungi Aspirgillus niger and A. flavus which showed the antibacterial and antifungal properties of the ligand and its metal complexes.

Quantitation and Adsorption of Glyphosate Using Various Treated Clay

2017 ◽  
Vol 231 (11-12) ◽  
Author(s):  
Rodrigo Mattos ◽  
Sabir Khan ◽  
Sajjad Hussain ◽  
José de Alencar Simoni
Keyword(s):  
Low Cost ◽  
Chemical Characterization ◽  
Adsorption Capacities ◽  
Physico Chemical ◽  
As Adsorption ◽  
Uv Visible

AbstractThe objective of this work is to develop a low-cost, alternative UV-visible Spectrophotometer method using ninhydrin to the current chromatography techniques (GC and HPLC), which is usually use for the quantitation of glyphosate. The physico-chemical characterization, such as adsorption capacities, effect of time and temperature has been studied. The reaction between the ninhydrin and compounds that present NH

Synthesis, physico-chemical characterization and antimicrobial activities of 3-methoxysalicylaldehyde-2-aminobenzoylhydrazone and its transition metal complexes

2012 ◽  
Vol 1019 ◽  
pp. 159-165 ◽  
Author(s):  
Dayananda S. Badiger ◽  
Rekha S. Hunoor ◽  
Basavaraj R. Patil ◽  
Ramesh S. Vadavi ◽  
Chandrashekhar V. Mangannavar ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Chemical Characterization ◽  
Antimicrobial Activities ◽  
Physico Chemical

scholarly journals SYNTHESIS, BIOLOGICAL STUDY, DNA INTERACTION OF MANNICH BASE METAL COMPLEXES DERIVED FROM BENZAMIDE

2021 ◽  
pp. 60-64
Author(s):  
SIVAKAMI SUDHASANKAR
Keyword(s):  
Metal Complexes ◽  
Mannich Base ◽  
Dna Interaction ◽  
Mannich Bases ◽  
Molar Conductance ◽  
Biological Study ◽  
Spectral Studies ◽  
Mass Spectral ◽  
Calf Thymus ◽  
Uv Visible

Objective: Coordination compounds occur widely in nature and they comprise a large share of current inorganic research. The Mannich reaction is a classic method for the preparation of Mannich bases, namely, β amino compounds, which are heterocyclic. Methods: A novel Mannich base of N-((3,4-dimethoxyphenyl)(2,5-dioxopyrrolidin-1-yl) methyl)benzamide and its coordination complexes with transition metals Mn and Co have been synthesized and characterized by elemental analysis, molar conductance, magnetic susceptibility measurements, UV-Visible, IR, NMR, and Mass spectral studies. Results: Based on the magnetic moment and UV-Visible spectral data, octahedral geometries were assigned for the metal complexes. The metal complexes were screened for antifungal activity. Conclusion: the metal complexes have shown good activity than the ligand. The binding of selected metal complexes with calf thymus DNA was investigated. It is found that the cobalt (II) metal complex of the ligand showed efficient DNA binding ability.

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