پديدآورندگان :
Ghorbani-Choghamarani Arash Iran.Eparisam28@yahoo.com Ilam University , Moradi Parisa Ilam University , Tahmasbi Bahman Ilam University
چكيده فارسي :
Boehmite is an aluminum oxide hydroxide (γ-AlOOH) particles, which the surface of
boehmite nanoparticles covered with hydroxyl groups. Boehmite is structure consists of
double sheets of octahedral with aluminum ions at their centers and the sheets themselves are
composed of octahedral chains and has a cubic orthorhombic structure. Also, boehmite
nanoparticles was not moisture-or air sensitive, and was synthesized in H2O at room
temperature without inert atmosphere using available materials. Boehmite has excellent
properties such as chemical resistance, good mechanical strength, good conductivity, high
hardness, low cost, high abrasive and corrosion resistance, excellent biocompatibility,
relatively and controllable synthesis [1]. Numerous methods have been reported for the
preparation of boehmite nanoparticles such as hydrothermal (HS), sol–gel, and hydrolysis of
aluminum. Despite several studies on morphology, properties and preparation of boehmite,
there are few reports on the modification of nano boehmite surface that have been reported as
heterogeneous catalyst [2]. Therefore in this work, palladium S-methylthio urea complex has
been supported on boehmite nanoparticles and applied as an excellent and reusable nano
organometallic catalyst for the C-C coupling reactions, because cross-coupling reactions were
used as a powerful method in modern synthetic organic chemistry for the preparation of
natural products, advanced materials, agrochemicals, pharmaceuticals, herbicides,
biologically active compounds, polymers, UV screens, preparation of hydrocarbons and liquid
crystal materials [3, 4].
