论文部分内容阅读
Two coordination polymers,{[Cu_3(tci)_2(DMAc)_3]-6DMAc 2H_2O}_n(1) and {[Cu_3(tci)_2(tpt)_2(H_2O)_2].2DMAc-2H_2O}_n(2)(H_3tci = tris(2-carboxyethyI)isocyanurate,tpt = 2,4,6-tris(4-pyridyl)-l,3,5-triazine,DMAc = N,/V-dimethylacetamide),have been constructed under solvothermal conditions.Both polymers were structurally characterized by single crystal X-ray diffraction,elemental analyses,IR spectra,thermogravimetric(TG) analyses and powder X-ray diffraction(RXPD).1 shows a(3,4)-connected 2D layer structure comprising Cu_2(CO_2)4 paddle-wheel units,which are further bridged by C-H…O interactions to give a 3D supramolecular network.The introduction of tpt produces different framework for 2 that comprises a dinuclear and a mononuclear Cu(Ⅱ) building units,which are further bridged together by tci~(3-) and tpt ligands to give a 4-connected 2D topological net.Adjacent 2D layers are packed together via C-H…O interactions and π…π stacking interactions to form a 3D supramolecular structure.In addition,the luminescent properties and the solid-state UV-vis spectra of 1 and 2 were explored.Furthermore,antiferromagnetic exchange interactions were unveiled in the Cu_2(COO)_4 units of 1.
Two coordination polymers, {[Cu_3 (tci) _2 (DMAc) _3] -6DMAc 2H_2O} _n (1) and {[Cu_3 (tci) _2 (tpt) _2 (H_2O) _2] .2DMAc-2H_2O} _n (H_3tci = tris (2-carboxyethyI) isocyanurate, tpt = 2,4,6-tris (4-pyridyl) -l, 3,5-triazine, DMAc = N, / V-dimethylacetamide), have been constructed under solvothermal conditions .Both polymers were structurally characterized by single crystal X-ray diffraction, elemental analyzes, IR spectra, thermogravimetric (TG) analyzes and powder X-ray diffraction (RXPD) (CO 2) 4 paddle-wheel units, which are further bridged by CH ... O interactions to give 3D supramolecular networks. The introduction of tpt produces different frameworks for 2 that comprise a dinuclear and a mononuclear Cu (II) building units, which are further bridged together by tci ~ (3-) and tpt ligands to give a 4-connected 2D topological net .Adjacent 2D layers are packed together via CH ... O interactions and π ... π stacking interactions to form a 3D supramolecular struct ure. addition, the luminescent properties and the solid-state UV-vis spectra of 1 and 2 were explored.Furthermore, antiferromagnetic exchange interactions were unveiled in the Cu_2 (COO) _4 units of 1.