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Full-Text Articles in Chemistry
Investigating The Structure Of Metal-Organic Frameworks And The Behaviors Of Adsorbed Guest Molecules In Mofs Via Solid-State Nmr Spectroscopy, Yihao Shen
Electronic Thesis and Dissertation Repository
Metal-organic frameworks (MOFs) are a class of hybrid organic-inorganic microporous materials with lots of significant applications including gas capture and storage, gas separation, batteries, catalysis, ion exchange and drug delivery. MOFs based on s-block metals are important due to their many practical applications. These MOFs are also very interesting because the s-block MOFs often exhibit unpredictable behavior of coordination. In this thesis, the structures of six s-block metal (Li, Na, Cs, Mg, Ca, Sr) based MOFs involving V-shaped link, 4, 4′- sulfonyldibenzoate (SDB) are characterized by various techniques including, powder X-ray diffraction, TGA and solid-state NMR spectroscopy. 13C CPMAS …
Synthesis Of Ni(Ii) Complexes For Allylic C(Sp3)-H Bond Activation For Aerobic Oxidation Catalysis, Shagana Kukendran
Synthesis Of Ni(Ii) Complexes For Allylic C(Sp3)-H Bond Activation For Aerobic Oxidation Catalysis, Shagana Kukendran
Electronic Thesis and Dissertation Repository
Nickel is a widely abundant and inexpensive metal. Catalysts are substances that remain unconsumed and increase the rate of reactions by reducing the activation energy barrier, often by providing an alternative route. The main goal of this study is to prepare Ni(II) complexes that can promote a catalytic aerobic oxidation reaction by breaking allylic C-H bonds. Based on previous studies, allylnickel N-heterocyclic carbene complexes react with molecular oxygen to give useful carbonyl compounds with a Ni(II)-OH by-product, which undergoes dimerization. In order to achieve catalysis, dimerization of the Ni(II)-OH should be prevented and C-H activation has to be achieved to …