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Synthesis, Characterization, Crystal Structure Determination and Theoretical Calculations of Some new Adducts of Cu (I) with Nitrogen-Donor and Phosphine Ligands
, M.Sc. Thesis Sharif University of Technology ; Kia, Reza (Supervisor)
Abstract
In the first part, two copper(I) complexes were synthesized as additive products of nitrogen-donor, phosphine and stibine ligands and copper(I) iodide, and in the second part, the triple-core copper(I) complex was synthesized with a phosphine ligand. The synthesized complexes were identified by FT-IR, 1H-NMR, 31P-NMR spectroscopy and the structure of these complexes was investigated using single crystal X-ray diffraction. In addition, the possibility of Cuprophilic interactions using structural parameters, And theoretical studies were reviewed. On the other hand, molecular structure determination allowed us to fully investigate the intramolecular and intermolecular interactions of the...
Synthesis and Characterization of a New Metallomacrocycle Complex of Au(I) Containing 4,4ˊ-Azopyridine Ligand
, M.Sc. Thesis Sharif University of Technology ; 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...
Nano CoCuFe2O4 catalyzed coupling reaction of acid chlorides with terminal alkynes: A powerful toolbox for palladium-free ynone synthesis
, Article Catalysis Communications ; Volume 102 , 2017 , Pages 71-75 ; 15667367 (ISSN) ; Pourkaveh, R ; Ahangarpour, M ; Sharif University of Technology
Elsevier B.V
2017
Abstract
The present work describes the application of nano CoCuFe2O4 toward the coupling reaction of acyl chlorides with terminal alkynes. By this catalytic system, ynone derivatives were formed in high yields via a palladium-free strategy. This protocol avoids the use of phosphine ligands as well as toxic CO sources. Recovery of catalyst by employing an external magnetic field and its reuse up to 9 consecutive trials confirm the robustness of this catalytic system. © 2017 Elsevier B.V
Synthesis of Homo and Hetero Bi and Multinuclear Complexes Containing Gold and Closed-Shell Metals Using Bridging Phosphine and Pyridine Ligands and Study of Their Emission Properties
, Ph.D. Dissertation Sharif University of Technology ; Jamali, Sirous (Supervisor)
Abstract
In this project, multi-nucleated clusters of copper (I)-gold (I) and silver (I)-gold (I) were synthesized. Initially, two tetranuclear Au2Cu2 cluster complexes [Au2Cu2(μ-(PPh2)2py)2(μ-OH)](PF6)3, and [Au2Cu2Cl2(μ-(PPh2)2 py)2](OTf)2, have been prepared by the reactions of precursor complexes [Au2(μ-(PPh2)2py)2](OTf)2, and [Cu2(μ-(PPh2)2py)2(μ-SMe2)(OTf)2], with [Cu(NCCH3)4]PF6 and AuCl(SMe2), respectively. The crystal structures of two clusters were determined by X-ray crystallography, indicating a butterfly-shaped Au2Cu2 metal core for the first and a planar-shaped Au2Cu2 metal core for second cluster. In the first cluster, the Cu atoms occupy the edge-sharing bond, while in the second...
2,6-Bis(diphenylphosphino)pyridine: A simple ligand showing high performance in palladium-catalyzed CN coupling reactions
, Article Tetrahedron Letters ; Vol. 55, issue. 30 , July , 2014 , p. 4098-4101 ; ISSN: 00404039 ; Rafiee, E ; Jamali, S ; Joshaghani, M ; Sharif University of Technology
Abstract
The use of commercially available 2,6-bis(diphenylphosphino)pyridine as a ligand in conjunction with K2CO3, DMAc and TBAB is an effective method for the palladium-catalyzed CN coupling of a variety of aryl halides with anilines, N-heterocyclic aromatic amines, and a cyclic secondary amine. The reactions proceed in good to excellent yield (up to 98%) while the loading of Pd(OAc)2 was as low as 0.025 mol %