Synthesis, characterization, and photophysical properties of a new class of diorganotin(IV)cupferronato complexes with pyridyl-based ancillary ligands with different conjugated π-system

Najafi, Ezzatollah; Amini, Mostafa M.; Taherbateni, Sepideh; Memarian, Hannaneh; Ng, Seik Weng

doi:10.1007/s00706-018-2170-6

Cited by 3 publications

(1 citation statement)

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“…Unique properties and novel reactivity are obtained through the preparation of new compounds which is considered as a significant stage in the development of complex compounds. To study metal complexes, factors of importance must be taken into account, such as: the functional groups of ligands, the properties and behaviour of donor and acceptor atoms of ligands and the coordination sphere of a compound . It has been found that Schiff bases containing an azomethine group show new and unusual structural properties as also do their complexes .…”

Section: Introductionmentioning

confidence: 99%

Coordination behaviour, molecular docking, density functional theory calculations and biological activity studies of some transition metal complexes of bis‐Schiff base ligand

Zayed

Hindy

2018

Applied Organom Chemis

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ions were synthesized from reaction with Schiff base ligand 4,6-bis((E)-(2-(pyridin-2-yl)ethylidene)amino)pyrimidine-2-thiol (HL) derived from the condensation of 4,6-diaminopyrimidine-2-thiol and 2-(pyridin-2-yl)acetaldehyde. Microanalytical data, magnetic susceptibility, infrared and 1 H NMR spectroscopies, mass spectrometry, molar conductance, powder X-ray diffraction and thermal decomposition measurements were used to determine the structure of the prepared complexes. It was found that the coordination between metal ions and bis-Schiff base ligand was in a molar ratio of 1:1, with formula [M (HL)(H 2 O) 2 ] X n (M = Mn (II), Co (II), Ni (II), Cu (II) and Cd (II), n = 2; Fe (III), n = 3). Diffuse reflectance spectra and magnetic susceptibility measurements suggested an octahedral geometry for the complexes. The coordination between bis-Schiff base ligand and metal ions was through NNNN donor sites in a tetradentate manner. After preparation of the complexes, biological studies were conducted using Gram-positive (B. subtilis and S. aureus) andGram-negative (E. coli and P. aeruginosa) organisms. Metal complexes and ligand displayed acceptable microbial activity against both types of bacteria. KEYWORDS bis-Schiff base ligand, in vitro biological activity, spectroscopy, thermal analysis, transition metal complexes

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Section: Introductionmentioning

confidence: 99%