Mononuclear complexes based on reduced Schiff base derived from l-methionine, synthesis, characterization, thermal and in vitro antimicrobial studies

Alghool, Samir

doi:10.1007/s10973-015-4610-4

Cited by 11 publications

(8 citation statements)

References 63 publications

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“…Two hydrated water molecule were removed between temperature ranges 60-140C (calculated 6.61% experimental 6.10% weight loss). The part of (-2C 6 [35,36]. The proposed degradation pathway [37] of the synthesized Cd(II) complex showing order and steps of possible elimination of atoms and groups as shown in (Fig.…”

Section: Magnetic Moment and Uv-visible Spectramentioning

confidence: 99%

Synthesis and Characterization with Antimicrobial Activity Studies on some Transition Metal Complexes of N, O Donor Novel Schiff Base Ligand

Hossain

Zakaria²,

Zahan

2017

J. Sci. Res.

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Metal complexes of Mn(II), Fe(II), Co(II) and Cd(II) ions with Schiff base ligand 4-{(pyridin-2-ylimino)methyl}phenol derived from condensation of 2-amino pyridine with 4-hydroxybenzaldehyde was prepared. The ligand and complexes were isolated from the reaction in the solid form and characterized by conductivity, magnetic moment, TLC, IR, UV-Visible, thermal analysis and some physical measurements. During complexation reaction with transition metal ions Schiff base act as a deprotonated tridentate ligand and IR spectra showed that N and O atoms are coordinated to the central metal atom. The observed values confirmed that the complexes have octahedral geometry. The Schiff base and its metal complexes have been found to have moderate to strong antibacterial activity.

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Section: Magnetic Moment and Uv-visible Spectramentioning

confidence: 99%

Synthesis and Characterization with Antimicrobial Activity Studies on some Transition Metal Complexes of N, O Donor Novel Schiff Base Ligand

Hossain

Zakaria²,

Zahan

2017

J. Sci. Res.

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“…In comparison of the Schiff bases and their metal complexes ( Table-3) suggested that the strong bands of Schiff bases for phenolic (-OH) group and azomethine (>C=N-) shifted to lower frequency when coordinated to metal ions. In comparison of the Schiff base and its metal complexes suggested that the strong band of Schiff base at (3448-3456) cm -1 and (1610-1640) cm -1 shifted to lower frequency when coordinated to metal ions, it linked in three different ways indicated that the ligand acts as a tridentate manner [21][22] . Further conclusive evidence in favor of formation of complex with Schiff base was attributed by appearance of weak low frequency new absorption bands at (502 -575) cm -1 and (315 -390) cm -1 that assigned the metal-oxygen ν(M-O) and metal -nitrogen ν(M-N) frequency respectively [13][14][15] .…”

Section: Resultsmentioning

confidence: 99%

“…In third steps of decomposition at temperature 440-740 0 C the other part of ligand-C6H4O-(calculated35.45%, experimental 32.54%) were break down. Finally at temperature above 740 0 C the complex was completely decomposed and removed as Co/CoO [20][21] . The thermal data of Co(SB-1) and Cu(SB-2) complexes was shown in Table- Fig.15) proposed that Cu(II) complex is thermally stable as it didn't break down up to temperature 280 0 C.The Cu(II) complex was decomposed into mainly three steps where the part of ligand-C6H4-and NH3 were decomposed at temperature 280-450 0 C (calculated 27.54%, experimental 23.75%) at first stage.…”

Section: Table-4: Electronic Spectra Of the Ligands And Their Correspmentioning

confidence: 99%

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Synthesis and Characterization of Cu (II) and Co (II) complexes containing Schiff base ligands towards Potential Biological Application

2018

jcbsc

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Metal complexes of Cu(II) and Co(II) ions with two Schiff base ligands {2-((2hydroxybenzylidene)amino)phenol}and {2,2'-((1,2-phenylenebis (azanylylidene)) bis (methanylylidene))diphenol} was derived from the condensation reaction of salicylaldehyde with 2-aminophenol and o-phenyldiamine respectively. The Structure and spectral properties of ligand and complexes were confirmed by UV-Visible, FT-IR and some physiochemical measurements. IR spectral studies show the N and O atom of the Schiff bases are binding sites of ligand with the metal ion. Molar conductance measurements give evidence in favor of non-electrolytic nature of the complexes. Magnetic susceptibility data coupled with electronic spectra suggested that the square planar structure of Cu(II) and octahedral structure of Co(II) complexes. The Schiff base ligands and their complexes were subjected to antimicrobial studies screened by using the Disc Diffusion method. All the synthesized compounds showed moderate to strong antibacterial activity. The complexes showed more antibacterial activity than their corresponding ligands. Synthesis … Md. Saddam Hossain et al.

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“…3). The first stage with estimated mass loss of 6.32% (calculated mass loss 6.28%) within the temperature range 40-110ºC corresponding to the loss of water molecules [56,57]. 9.…”

Section: Zn(ii) Ni(ii) Mn(ii) and Sn(ii) Complexes Of Ligand C 8 H 9 On 3 S (L 1 )mentioning

confidence: 99%

Synthesis, Spectral and Thermal Characterization of Selected Metal Complexes Containing Schiff Base Ligands with Antimicrobial Activities

Afsan

Dalia

Hossain

et al. 2018

AJOCS

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Selected metal complexes of Ni (II), Zn(II), Mn(II), Sn(II), Co(II) and Cd(II) ions were synthesized with three different synthesized Schiff base ligands. The ligands and metal complexes were isolated in the solid state from the reaction medium and characterized by molar conductivity measurement, magnetic susceptibility, Infrared, electronic spectral, thermal analysis and some physical measurements. The overall reactions were monitored by TLC analysis. Molar conductance study has shown that all the complexes were non-electrolytic in nature. FTIR studies suggested that Schiff bases act as deprotonated bidentate ligands and metal ions are attached with the ligands through N, O/S coordinating sites during complexation reaction. Magnetic susceptibility data coupled with electronic spectra revealed that Zn(II), Mn(II), Sn(II), and Cd(II) complexes have tetrahedral, Ni(II) complexes have a square planer and Co(II) complexes have octahedral geometry. Thermal analysis

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Mononuclear complexes based on reduced Schiff base derived from l-methionine, synthesis, characterization, thermal and in vitro antimicrobial studies

Cited by 11 publications

References 63 publications

Synthesis and Characterization with Antimicrobial Activity Studies on some Transition Metal Complexes of N, O Donor Novel Schiff Base Ligand

Synthesis and Characterization with Antimicrobial Activity Studies on some Transition Metal Complexes of N, O Donor Novel Schiff Base Ligand

Synthesis and Characterization of Cu (II) and Co (II) complexes containing Schiff base ligands towards Potential Biological Application

Synthesis, Spectral and Thermal Characterization of Selected Metal Complexes Containing Schiff Base Ligands with Antimicrobial Activities

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