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Host (nanocavity of zeolite-Y)/guest (12- and 14-membered azamacrocyclic Ni(II) complexes) nanocatalyst: synthesis, characterization and catalytic oxidation of cyclohexene with molecular oxygen |
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| Authors: | Masoud Salavati-Niasari Shahrzad Abdolmohammadi |
| Institution: | 1. Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box 87317-51167, Kashan, Islamic Republic of Iran 2. Department of Chemistry, Faculty of Science, University of Kashan, P. O. Box 87317-51167, Kashan, Islamic Republic of Iran 3. School of Chemistry, College of Science, University of Tehran, P. O. Box 14155-6455, Tehran, Iran |
| Abstract: | Ni(II) complexes of 12]aneN4: 1,4,7,10-tetraazacyclododecane-2,3,8,9-tetraone; 14]aneN4: 1,4,8,11-tetraazacyclotetradecane-2,3,9,10-tetraone; Bzo212]aneN4: dibenzo-1,4,7,10-tetraazacyclododecane-2,3,8,9-tetraone and Bzo214]aneN4: dibenzo-1,4,8,11-tetraazacyclotetradecane-2,3,9,10-tetraone have been encapsulated in the nanopores of zeolite-Y by a two-step process in the liquid phase: (i) adsorption of bis(diamine)nickel(II)]; Ni(N–N)2]–NaY; in the supercages of the zeolite, and (ii) in situ condensation of the nickel(II) precursor complex with diethyloxalate. The new host-guest nanocatalyst (HGN) were characterized by several techniques: chemical analysis and spectroscopic methods (FT-IR, UV/Vis, XRD, BET, DRS) and then were used for oxidation of cyclohexene with molecular oxygen. |
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