Mojtaba Amini
Chemistry Department, Faculty of Science, University of Maragheh, Maragheh, Iran
[ 1 ] - Immobilization of a new (salen) molybdenum(VI) complex onto the ion-exchangeable polysiloxane as a heterogeneous epoxidation catalyst
In this study, a new recoverable catalyst for the epoxidation of olefins was developed using a layered polysiloxane as a support for immobilizing (salen) molybdenum(VI) complex by electrostatic interaction between the surface of the solid support and the electrically charged molybdenum complex. Characterization of the heterogeneous catalyst by Fourier transform infrared, XRD,1H NMR,...
[ 2 ] - Photocatalytic degradation of some organic dyes under solar light irradiation using TiO2 and ZnO nanoparticles
Nanoparticles of the ZnO and TiO2 were synthesized and the physicochemical properties of the compounds were characterized by IR, X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The XRD patterns of the ZnO and TiO2 nanoparticles could be indexed to hexagonal and rutile phase, respectively. Aggregated nanoparticles of Z...
[ 3 ] - نانوذره های پالادیم تثبیت شده بر روی بستر روی اکسید به عنوان کاتالیستی مؤثر در واکنش جفت شدن هک
در این پژوهش نانوذره های پالادیم تثبیت شده بر روی بستر روی اکسید با سطح های بهینه‌ای مؤثر و کارا تهیه شد و با شیوه‌های گوناگونی همچون XRD، SEM و TEM شناسایی شد. سپس کاربرد این نانوذره ها به عنوان کاتالیست در واکنش های جفت شدن هک مورداستفاده قرار گرفت و همچنین تأثیر عامل های محیطی گوناگون مانند، دما، نوع باز و اثر حلال در واکنش های جفت شدن هک مورد بررسی و مطالعه قرار گرفت. در پایان قاب...
[ 4 ] - Synthesis, Characterization and Catalytic Study of a Novel Binuclear Paddle-wheel Palladium(II) Complex in the Mizoroki-Heck Reaction
A new binuclear paddle-wheel palladium(II) complex of [Pd2(μ-mtzt)4]dmgH2 (1) has been prepared by the treatment of PdCl2 in acetonitrile with mixture of 1-methyl-1H-1,2,3,4-tetrazole-5-thiol (Hmtzt) and dimethylglyoxime (dmgH2) in methanol. Resulted complex was characterized by elemental analysis (CHNS), IR, UV–Vis absorption, 1H NMR spectroscopy and its structure was determined with single-cr...
[ 5 ] - Preparation and Investigation of Spinel-structured FeCo2O4 Nanoparticles as an Efficient Catalyst for Oxidation of Sulfides
We report the preparation and characterization of spinel-structured FeCo2O4 nanoparticles for the efficient and selective oxidation of sulfides. The as-prepared FeCo2O4 nanoparticles were characterized by powder X-ray diffraction (PXRD), energy-dispersive X-ray analysis (EDX), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). According to TEM images, the size of the...