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41.
N. Muhammad S. Ali S. Shahzadi A. N. Khan 《Russian Journal of Coordination Chemistry》2008,34(6):448-453
Oxovanadium(IV) complexes with four different non-steroidal anti-inflammatory drugs have been synthesized. These complexes
were characterized by different analytical techniques such as CHN, IR, UV-Vis spectroscopy, and mass spectrometry. The IR
data show the bidentate nature of the ligands and reveal hexacoordinate geometry in the solid state. The complexes were tested
for their biological activity against six different bacterial strains and plant pathogens, and all complexes showed good biological
activity with few exceptions
The text was submitted by the authors in English. 相似文献
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Zohra N. Kayani Rabia Ishaque Bareera Zulfiqar Saira Riaz Shahzad Naseem 《Optical and Quantum Electronics》2017,49(6):223
The consequence of annealing on the micro-structural and electrochemical characteristics of Al doped CoZnO thin films deposited by sol–gel dip coating technique are studied. X-ray diffraction indicates that films have a hexagonal wurtzite structure oriented towards the (100). Optical properties of films are recorded by transmission curves utilising a UV–VIS spectrophotometer. The investigation of the optical transmission spectra indicates that the band gap of the films decrease from 3.99 eV to minimum 3.83 eV upon annealing. All films show room temperature ferromagnetism whose magnetization increases with annealing. Dip coated films possess polycrystalline nanosized grains with porous morphology. 相似文献
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Asad Ullah Saira Ahmad Milan Maric Syed Mujtaba Shah Hazrat Hussain 《Journal of polymer science. Part A, Polymer chemistry》2022,60(16):2488-2499
A low temperature ATRP of methacryloisobutyl POSS (POSS-MA) is carried out, using poly(propylene glycol) (PPG)-based macroinitiator, in toluene with CuCl/PMDETA as the catalyst system, generating well-defined P(POSS-MA)-b-PPG-b-P(POSS-MA) triblock copolymer with Ð ~ 1.1. The semilogarithmic kinetic plot reveals first-order kinetics and the dispersity is observed to decrease as the reaction progresses—an indication of the controlled behavior of the polymerization. To assess the chain-end fidelity of the produced block copolymer, chain extension is carried out with oligo(ethylene glycol methacrylate) (OEGMA) that afforded water-soluble P(OEGMA)-b-P(POSSMA)-b-PPG-b-P(POSSMA)-b-P(OEGMA) pentablock copolymers. The SEC profiles suggest a quantitative initiation by the macroinitiator. By varying the monomer to initiator molar ratio, block copolymers with various P(OEGMA) chain lengths, ranging from 19 to 58 units on each side have been achieved with relative lower dispersity (Ð < 1.4). Kinetic analysis of the ATRP of OEGMA, with P(POSSMA)-b-PPG-b-P(POSSMA) as the macroinitiator, suggests first-order kinetics and controlled nature of the polymerization. The PPG and P(OEGMA) segments impart a thermosensitive character to the obtained water-soluble amphiphilic hybrid block copolymers; hence they display temperature-dependent self-assembly behavior in aqueous medium. 相似文献
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A series of new heterobimetallic complexes of zinc and tin with 4-aminophenylacetic acid has been prepared. Their composition and structure in solid state and in solution have been elucidated by elemental analysis, IR, 1H NMR, and 13C NMR spectroscopy. IR spectroscopy results have confirmed the bidentate nature of the ligand, its molecules being arranged in planar square [Zn(II)] and trigonal bipyramid [Sn(IV)] around the metal ions. NMR studies have revealed four-coordinated geometry in the solution. The complexes containing both Sn(IV) and Zn(II) are better antimicrobial agents as compared to the Zn-only analog. 相似文献
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A synergistic catalysis combination of chiral‐at‐metal rhodium complex and amine catalyst was developed for enantioselective alkylation of aldehydes with α,β‐unsaturated 2‐acyl imidazoles. The corresponding adducts were obtained in good yields with excellent enantioselectivities (up to 99% ee). 相似文献
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Structural and Magnetic Properties of Chemically Synthesized Pd-Modified NiFe2O4 Nanoparticles
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Magnetic nanoparticles of NiFe2O4-Pd composites have been synthesized using a simple, low cost, sol-gel auto-combustion method. As-prepared samples were sintered at 800 ℃ for 6 h in order to develop the crystalline phase. X-ray diffraction confirmed the spinel structure of the ferrite samples. Structural morphology and size of the nanoparticles were evaluated using a field emission scanning electron microscope. Magnetic hysteresis loops were obtained at 300 and 100 K using a physical properties measurement system. The value of saturation magnetization was observed to decrease at the temperatures with the increase of Pd contents up to 5% but then a sudden rise in saturation magnetization was observed for the addition of 10% Pd in NiFe2O4. 相似文献
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Islam Shumaila Bidin Noriah Saeed M. Alam Riaz Saira Bakar M. Aizat A. Naseem Shahzad Abbas Khaldoon Naji Sanagi Mohd Marsin 《Journal of Sol-Gel Science and Technology》2017,81(2):623-631
Journal of Sol-Gel Science and Technology - Using in-situ sol–gel processing, Sn-doped MgO2 nanofilm has been fabricated by spin-coating technique. Cracked and uneven distribution of... 相似文献
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We present different types of new concepts, including intuitionistic fuzzy soft graphs, complete intuitionistic fuzzy soft graph, strong intuitionistic fuzzy soft graph and self complement of intuitionistic fuzzy soft graph. We describe various methods of their construction, and investigate some of their related properties. We also discuss applications of intuitionistic fuzzy soft graphs in communication network and decision making. 相似文献