Synthesis, structural, spectral, electrochemical and catalytic properties of VO (IV) complexes containing N, O donors

Raja, K. Kanmani; Lekha, L.; Hariharan, Ramakrishnan; Easwaramoorthy, D.; Rajagopal, Gurusamy

doi:10.1016/j.molstruc.2014.06.086

Cited by 14 publications

(1 citation statement)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Vanadium compounds have been extensively studied for their diverse biological activities such as antitumor, antibacterial, and insulin-enhancing effects and potential capabilities as DNA structural probes [ 3 , 4 ]. The coordination chemistry of oxovanadium is highly ligand dependent and more important in biological systems [ 5 ] as well as catalytic systems [ 6 , 7 ]. Due to the d1 configuration, vanadium(IV) ionic species are easily identified by EPR spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Novel VO(II)-Perimidine Complexes: Spectral, Computational, and Antitumor Studies

Al‐Hazmi

Abou‐Melha

El‐Metwaly

et al. 2018

Bioinorganic Chemistry and Applications

View full text Add to dashboard Cite

A series of perimidine derivatives (L1–5) were prepared and characterized by IR, 1H·NMR, mass spectroscopy, UV-Vis, XRD, thermal, and SEM analysis. Five VO(II) complexes were synthesized and investigated by most previous tools besides the theoretical usage. A neutral tetradentate mode of bonding is the general approach for all binding ligands towards bi-vanadyl atoms. A square-pyramidal is the configuration proposed for all complexes. XRD analysis introduces the nanocrystalline nature of the ligand while the amorphous appearance of its metal ion complexes. The rocky shape is the observable surface morphology from SEM images. Thermal analysis verifies the presence of water of crystallization with all coordination spheres. The optimization process was accomplished using the Gaussian 09 software by different methods. The most stable configurations were extracted and displayed. Essential parameters were computed based on frontier energy gaps with all compounds. QSAR parameters were also obtained to give another side of view about the biological approach with the priority of the L3 ligand. Applying AutoDockTools 4.2 program over all perimidine derivatives introduces efficiency against 4c3p protein of breast cancer. Antitumor activity was screened for all compounds by a comparative view over breast, colon, and liver carcinoma cell lines. IC50 values represent promising efficiency of the L4-VO(II) complex against breast, colon, and liver carcinoma cell lines. The binding efficiency of ligands towards CT-DNA was tested. Binding constant (K b) values are in agreement with the electron-drawing character of the p-substituent which offers high K b values. Also, variable Hammett's relations were drawn.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis of Novel VO(II)-Perimidine Complexes: Spectral, Computational, and Antitumor Studies

Al‐Hazmi

Abou‐Melha

El‐Metwaly

et al. 2018

Bioinorganic Chemistry and Applications

View full text Add to dashboard Cite

show abstract

Oxidative Heteroatom–Heteroatom Bond Formation

Bering

Antonchick

2018

Patai's Chemistry of Functional Groups

View full text Add to dashboard Cite

The development of oxidative heteroatom–heteroatom bond‐forming reactions based on the use of hypervalent iodine reagents is summarized, with emphasis on metal‐free and transition‐metal‐catalyzed reactions. The most important approaches are located in the field of nitrogen–heteroatom and sulfur–heteroatom bond formation, but also chemical transformations including rather rarely used elements are discussed. Increasing interest in the field of heteroatom–heteroatom bond formation in the past decades led to some notable discoveries, which are discussed within this chapter.

show abstract

Reactivity and Catalytic Activity of Homobimetallic Vanadium(V) Complex Derived from Bis(5‐chlorosalicylaldehyde)oxaloyldihydrazone Ligand

Syiemlieh

Asthana

Lal

2019

Applied Organom Chemis

View full text Add to dashboard Cite

Homobimetallic vanadium(V) complex of the composition [(CH 3 ) 2 NH 2 + ] 2 [(VO 2 ) 2 (sloxCl)].4H 2 O was synthesized from the reaction of V 2 O 5 with bis(5-chlorosalicylaldehyde)oxaloyldihydrazone ligand in a 1:1 molar ratio in methanol. The structure of the complex was established by Xray crystallography. Reactivity of the complex with H 2 O 2 leads to bis (monooxidoperoxidovanadate(V)) [{VO(O 2 )} 2 (sloxCl)] 2− formation and withHCl, oxidohydroxido complex of composition [(VO (OH)(sloxCl)] 2− was formed. Binding interaction of the complex was also investigated toward protein (BSA) and it was found to be 2.21 x 10 8 M −1 . The catalytic activity of the complex in the oxidation of alcohols and oxidative bromination of some organic substrates was also studied, and it showed a great potent as a catalyst.

show abstract

Synthesis, structural, spectral, electrochemical and catalytic properties of VO (IV) complexes containing N, O donors

Cited by 14 publications

References 36 publications

Synthesis of Novel VO(II)-Perimidine Complexes: Spectral, Computational, and Antitumor Studies

Synthesis of Novel VO(II)-Perimidine Complexes: Spectral, Computational, and Antitumor Studies

Oxidative Heteroatom–Heteroatom Bond Formation

Reactivity and Catalytic Activity of Homobimetallic Vanadium(V) Complex Derived from Bis(5‐chlorosalicylaldehyde)oxaloyldihydrazone Ligand

Contact Info

Product

Resources

About