Synthesis and Characterization of Lanthanide(iii) Schiff Base Complexes Derived From Cysteine and Benzoin

Ma, Haitao; Wang, B.; Shi, Q.

doi:10.1081/sim-120003800

Cited by 9 publications

(1 citation statement)

References 6 publications

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“…The λ max , their possible assignments ( Figure 4 ) and calculated ligand field parameters for MHMMT and its complexes depicted in Table 3 helps to predict the extent of covalent bonding and geometry of the complexes. Two intra ligand absorption bands were observed by the ligand MHMMT at 267 and 333 nm which is assigned to π-π∗ transitions of aromatic rings and n- π∗ transition of azomethine and carbonyl groups [ 33 ]. In the absorption spectra of complexes, the band at 333 nm due to n- π∗ transition shows a significant shift and change in intensity which confirms the ligand MHMMT with metal ions via azomethine nitrogen.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, characterization, in silico, and in vitro biological screening of coordination compounds with 1,2,4-triazine based biocompatible ligands and selected 3d-metal ions

P¹,

Prasad

Joseph

2020

Heliyon

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A bidentate Schiff base ligand, MHMMT, obtained from 1,2,4-triazine derivative and 4-hydroxy-3-methoxy benzaldehyde and its Fe(III), Co(II), Ni(II), Cu(II), and Zn(II) complexes were synthesised in ethanolic media and characterized by various analytical techniques like elemental analyses, magnetic susceptibility measurements, FTIR, UV-VIS, proton NMR, ESR, spectroscopic and thermogravimetric studies. Various geometries like a tetrahedral for Co(II) and Zn(II) complexes, an octahedral for Fe(III) and Ni(II) complexes, and square planar for Cu(II) complex has been assigned. For all metals complexes except Co(II), a 2:1 ligand to metal ratio is observed, while Co(II) complex has a 1:1 ratio. In accordance with the probable activity spectra of substances as obtained from PASS analysis, in vitro α-amylase inhibition studies by starch-iodine method for ligand and complexes except that of Fe(III) and anticancer screening against human breast cancer cell lines MCF-7 using MTT assay for Fe(III) complex were conducted. The tested compounds were found to be good α-amylase inhibitors, characteristically similar to most of the antidiabetic drugs. Among the compounds, Cu(II) complex exhibited the highest α-amylase inhibitory activity. Furthermore, ligand and complexes were also exposed to in vitro antimicrobial activities, drug-likeness, bioactivity score prediction by Molinspiration software. Molecular docking analysis of selected compounds on α-amylase and VEGFR-2 kinase were carried out for confirming the experimental observations.

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Section: Resultsmentioning

confidence: 99%

Synthesis, characterization, in silico, and in vitro biological screening of coordination compounds with 1,2,4-triazine based biocompatible ligands and selected 3d-metal ions

P¹,

Prasad

Joseph

2020

Heliyon

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Selective and solventless oxidation of organic sulfides and alcohols using new supported molybdenum (VI) complex in microwave and conventional methods

Das

Boruah

2020

Applied Organom Chemis

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A new dioxo‐molybdenum (VI) complex supported on functionalized Merrifield resin (MR‐Mo) has been synthesized and characterized by elemental, scanning electron mcroscopy, energy‐dispersive X‐ray analysis, TGA, Brunauer–Emmett–Teller method, powder‐X‐ray diffraction, Fourier transform infrared, X‐ray photoelectron spectroscopy and DRS–UV–vis analysis. The virgin Merrifield resin (MR) was functionalized by carbonylation followed by Schiff base formation with ethanolamine (MR‐SB). Experimental data showed that the Schiff base coordinated with the MoO22+ moiety via O‐ and N‐atoms. The catalytic activity of MR‐Mo was explored under solventless conditions toward the oxidation of organic sulfides and alcohols using 30% aqueous H2O2 as oxidant. The oxidation reactions were conducted under microwave and conventional methods. The microwave‐assisted oxidation reactions were found to be many times faster than the conventional methods. The oxidation reactions were selective and formed sulfoxides or aldehydes as the sole product with superior TOF values among the molybdenum (VI)‐based complexes. Besides these, the MR‐Mo was purely heterogeneous in nature and can be recycled for at least five reaction cycles without the loss of catalytic efficiency and product selectivity.

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Thermochemical study of the solid complex Ho(PDC)3 (o-phen)

Xie

Chen

Gao

et al. 2006

J Therm Anal Calorim

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Synthesis and Characterization of Lanthanide(iii) Schiff Base Complexes Derived From Cysteine and Benzoin

Cited by 9 publications

References 6 publications

Synthesis, characterization, in silico, and in vitro biological screening of coordination compounds with 1,2,4-triazine based biocompatible ligands and selected 3d-metal ions

Synthesis, characterization, in silico, and in vitro biological screening of coordination compounds with 1,2,4-triazine based biocompatible ligands and selected 3d-metal ions

Selective and solventless oxidation of organic sulfides and alcohols using new supported molybdenum (VI) complex in microwave and conventional methods

Thermochemical study of the solid complex Ho(PDC)3 (o-phen)

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