Synthesis and Characterization of a New Metallomacrocycle Complex of Au(I) Containing 4,4ˊ-Azopyridine Ligand

, M.Sc. Thesis Sharif University of Technology Abdolrahimi, Amin (Author) ; Jamali, Sirous (Supervisor)

Abstract

Gold(I) complex of [Au2(μ-PAnP)Cl_2] (1) (PAnP = 9,10-bis(diphenylphosphino)anthracene) has been prepared from the reaction of AuCl(SMe2) with PAnP in a 2:1 molar ratio. The structure of 1 was determined using 1H NMR and 31P{1H} NMR spectroscopy in solution. The tetranuclear metallomacrocycle [Au4(μ-PAnP)2 (μ-4,4 AzoPy)2]OTf4 (2) (4,4 AzoPy = 4,4-Azopyridine) has been prepared from the reaction of complex 1 with AgOTf and 4,4-Azopyridine in a 1:2:1 molar ratio. The structure of 2 was characterized using X-ray crystallography in solid state, 1H NMR and 31P{1H} NMR spectroscopy, UV-Vis spectroscopy and photoluminescence spectroscopy in solution state. The 1 has bright green emission in solid...

Synthesis and Characterization of a Metal-Organic Molecular Cage with Anthracene Derivative Linkers and the Study of its Host-Guest Chemistry

, M.Sc. Thesis Sharif University of Technology Daemi, Zohreh (Author) ; Jamali, Sirous (Supervisor)

Abstract

Through the bromination reaction of anthracene, the compound 9,10-dibromoanthracene (1) was synthesized. Subsequently, using a Suzuki coupling mechanism and the pinacol ester of 4-pyridineboronic acid, the ligand 9,10-bis(4-pyridyl)anthracene (2) was obtained. A cubic molecular cage [(PtMe3)8(9,10-bis(4-pyridyl)anthracene)12][OTf]8 (5) with trimethylplatinum(IV) (PtMe3) vertices and anthracene-based linkers was synthesized from the reaction of [PtMe3I]4 (3) with 9,10-bis (4-pyridyl)anthracene(2) linker in the presence of AgOTF (OTf = trifluoromethanesulfonate) in a 1:6 molar ratio. The structure of 5 was characterized by NMR spectroscopy in solution state. The ratio of aromatic to aliphatic...

Chemical Modification of Cotton Fabric with Polyamidoamine Dendrimer and Its Application for Detection And Measurement of Organic Pollutants

, M.Sc. Thesis Sharif University of Technology Rezaei, Elmira (Author) ; Bagheri, Habib (Supervisor)

Abstract

In this research, cotton fabric modified with polyamidoamine dendrimer was prepared by chemical method and in order to increase the extraction efficiency of cotton fabric. Before modifying the fabric with dendrimer, an activation step of the functional groups of the fabric was performed by (3-aminopropyl)triethoxysilane. The prepared adsorbent was used in thin film microextraction of Anthracene, Fenthion, p,p'-DDT, BBP and Tetradifon along with Gas chromatography-Mass spectrometer. To obtain the maximum efficiency of the synthesized adsorbent, the parameters of pH, type of desorption solvent, volume of desorption solvent, desorption time and extraction time were optimized. The dynamic linear...