پديد آورنده :
نادري بني، مرضيه
عنوان :
ساخت بررسي ساختار﴿FT-IR, BET, SEM, XRD﴾ِ، واكنش پذيري و گزينش پذيري مخلوط آلومينا با HNO3, H2SO4 يا NANO2 و مطالعاتDFT، MP2,Ab initio اثر آنومري و برهم كنش هاي غير پيوندي در مشتقات4،1 ـ دي اكسان و سيكلو هگزان هاي همولوگ
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي
صفحه شمار :
سيزده،104، [II]ص: مصور، جدول، نمودار
يادداشت :
ص.ع. به: انگليسي و فارسي
استاد راهنما :
عبدالحسين دباغ
توصيفگر ها :
مشتقات 4،1- دي اكسانXRD,BET,SEM, دهيدراسيون ,
تاريخ نمايه سازي :
29/2/1388
استاد داور :
امير عبدالملكي، عليرضا نجفي
چكيده فارسي :
به فارسي وانگليسي:قابل رويت در نسخه ديجيتال
چكيده انگليسي :
AbstractThe influence of the acid type and amount used for peptization of aluminum hydroxide oncrystallinity of the boehmite as well as the pH of sols was investigated X raydiffractograms of boehmite powders showed decrease in crystallinity at higher ratio of acidto aluminum hydroxide and depends on the pH of sols The boehmite was calcinated at 350and 600 C to yield Al2O3 catalysts These catalysts then characterized by N2 absorption BET Xray diffraction XRD scanning electron microscopy SEM and infraredspectroscopy IR In order to test the reactivity and selectivity of calcined catalysts dehydration reaction of a secondary alcohol 2 octanol was carried out over these catalyst There was a good correlation between product distribution and catalyst acidity Catalystprepared under stronger acidic condition resulted isomeriztion of 1 octenes and 2 octenesto 3 octenes In this study conformational analysis and anomeric effect of 2 substituted 1 4 dioxanes X NO2 CN F Cl Br Me Et t Bu OH OMe NH2 are calculated and compare to thevalues of the similar substituted cyclohexanes The energy differences between the axialand equatorial conformers endo and exo anomeric effect repulsive non bond and H bonding interactions are investigated Ab initio HF 6 31G MP2 6 31G and DFT B3LYP 6 31G methods were used tocalculate the bond lengths bond angles torsion angles relative energies andconformational analysis of axial and equatorial conformers of 2 substituted 1 4 dioxanes
استاد راهنما :
عبدالحسين دباغ
استاد داور :
امير عبدالملكي، عليرضا نجفي
