Improving the surface morphology and crystallite size of isonicotinohydrazide based binuclear Cr(III), Zn(II) and Sn(IV) complexes after irradiation with γ-rays
作者:Heba Alshater、Hanaa A. El-Boraey、Atef M.A. Homoda、Ohyla A. EL-Gammal
DOI:10.1016/j.molstruc.2021.129985
日期:2021.5
UV–Vis), powder XRD and thermogravimetry (TG) techniques. The data show that all complexes are dinuclear, Cr(III) complex supposed in distorted teteragonal geometry and Zn(II) complex supposed in distorted square planar geometry have the formula [Cr2L(OH)4]Cl2(1) and [Zn2LCl2(H2O)2]Cl2.3H2O (2), respectively and Sn(IV) has distorted octahedral geometry and the formula is Sn2LCl2(OH)4(H2O)2]Cl2.H2O(3)
Synthesis and Antimicrobial Activity of N-[2-(aryl/substituted aryl)-4-oxo-1,3-thiazolidin-3-yl]pyridine-4-carboxamide
作者:Asha B. Thomas、Rabindra K. Nanda、Lata P. Kothapalli、Avinash D. Deshpande
DOI:10.5012/jkcs.2011.55.6.960
日期:2011.12.20
A series of isonicotinyl hydrazones and their 4-thiazolidinones have been synthesized by condensation of isonicotinic acid hydrazide with various aromatic aldehydes to yield Schiff's bases, followed by the cyclocondensation of Schiff's bases with 2-mercaptoacetic acid to yield their 4-thiazolidinones. The synthesized compounds have been characterized by their elemental, analytical and spectral studies. All these compounds were evaluated for their invitro antimicrobial activity against a spectrum of non-resistant and resistant microbial organisms. These studies proved that compounds 5e,i against B. subtilis; 5e,f,h against B. anthracis; 5g,i against S. aureus showed good activity at lower concentrations. Compounds 5d-5i displayed significant activity against resistant strain of K. pneumonia with minimum inhibitory potency in the concentration range of 2-16 ug/ml.