Browsing by Author "Yamin, Bohari M"
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Item HYDROGEL AS A MINI REACTOR FOR FERROCENIUM NANOPARTICLES(2014-05-21) Omar, Katijah; Mokhtarom, Maryam; Salleh, Noraini Mohd; Yuroni; Yamin, Bohari MA simple method to produce ferrocenium nanoparticles (FcNPs) based on pH induced using hydrogel systems as a mini reactor is described. Hydrogels were prepared using Acryl Amide (AM),N, N' methylenebisacrylamide(MBA) as cross-linking agent,Potassium Persulfate(KPS) as the initiator and alsoTetramethlethylenediamine(TEMED)as a gelling agent. In order to prepare the nanoparticles, two different approaches were used. First, the FcNPs were prepared in-situ and secondly the hydrogel was immersed into the Ferrocenium solution at different concentrations. These nanoparticles were characterized by Fourier Thermal Infrared (FTIR), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). The analytical results show the hydrogel systems are able to act as a mini reactor for FcNPs.Item SYNTHESIS AND STRUCTURAL STUDIES OF N-(HALOGENOCARBONOYL)-N'-(ARYL)THIOUREA(2014-05-21) Abosadiya, Hamza M; Hasbullah, Siti Aishah; Yamin, Bohari MThe number of structure of carbonoylarylthiourea derivatives is increasing because of their potential in biological properties. The structural informations are important for the structureactivity relationship studies or rational drug design work. However, the thioureas containing halogen in the carbonoyl fragment is still very scarce. N-(3-chloropropionyl)-N'-(2- methylphenyl)thiourea(I) and N-(3-chloropropionyl)-N'-(4-methylphenyl)thiourea(II) were synthesized and characterized by FTIR and NMR spectroscopic techniques. The compound (I) was obtained as twinned crystal. The X-ray study showed that the asymmetric unit consists two independent molecules. The trans–cis configuration of the chloropropionyl and methyl phenyl groups respectively, against the thiono about their C-N bonds is maintained