Two novel supramolecular complexes, [Cu（bopapa）（mal）]·H2O·CH3OH （1） and {[Cu（bopapap）]（Hmal）2}·2H2O （2） [bpapa = bis-[6-（2-pyridylamino）pyrid-2-yl]amine, bpapap = 2,6-bis-[6-（pyrid-2-ylam...Two novel supramolecular complexes, [Cu（bopapa）（mal）]·H2O·CH3OH （1） and {[Cu（bopapap）]（Hmal）2}·2H2O （2） [bpapa = bis-[6-（2-pyridylamino）pyrid-2-yl]amine, bpapap = 2,6-bis-[6-（pyrid-2-ylamino）pyrid-2-ylamino]- pyridine, mal=maleate dianion] were rationally designed and synthesized based on flexible multidentate ligands and copper（Ⅱ） maleate. Complexes 1 and 2 were all characterized by elemental analysis, spectroscopic techniques, thermal analysis and single crystal X-ray diffraction analysis. Complex 1 is of an infinite 3-D supramolecular framework constructed by 2-D sheets to contain 1-D helical chains formed by intermolecular hydrogen bond inter- actions between the non-coordinated oxygen atoms from maleate and nitrogen atoms from amino groups of bpapa. Complex 2 also takes a 3-D supramolecular structure, which is built from 2-D rhombic sheets produced by sequential dimer units. Interestingly, three pairs of symmetrical hydrogen bonds generate these dimer units.展开更多
Two novel supramolecular complexes [Cu（bpapa）（dhbd）]·CHaOH （1） and [Cu（bpapa）（ma）]·ma （2） （bpapa= bis[6-（2-pyridylamino）pyrid-2-yl]amine, dhbd=2,3-dihydroxybutanedioate dianion, ma=a-methacryl...Two novel supramolecular complexes [Cu（bpapa）（dhbd）]·CHaOH （1） and [Cu（bpapa）（ma）]·ma （2） （bpapa= bis[6-（2-pyridylamino）pyrid-2-yl]amine, dhbd=2,3-dihydroxybutanedioate dianion, ma=a-methacrylate） were rationally designed, synthesized and characterized by single crystal X-ray diffraction, IR, electronic spectroscopy and thermogravimetric analyses. Complex 1 was the first oligo-a-pyfidylamino complex based on hydroxypolycarboxylate and self-assembled into a 3D honeycomb configuration network with open channels and tubes containing 1D ladder-shaped double chains formed by hydrogen bonds and aromatic π-π stacking interactions. Complex 2 constructed a 2D supramolecular network extended by 1D chains from dimeric supramolecular synthon through noncovalent supramolecular interactions. In the two complexes, the chelating monohelical ligand adopted all-anti configuration. Density functional theory calculations were applied to 1 and 2.展开更多
基金Project supported by the National Natural Science Foundation of China （No. 20471048） and the Teaching and Research Award Program for 0ut-standing Young Teachers in Higher Education Institutions of Ministry of Education, China.
文摘Two novel supramolecular complexes, [Cu（bopapa）（mal）]·H2O·CH3OH （1） and {[Cu（bopapap）]（Hmal）2}·2H2O （2） [bpapa = bis-[6-（2-pyridylamino）pyrid-2-yl]amine, bpapap = 2,6-bis-[6-（pyrid-2-ylamino）pyrid-2-ylamino]- pyridine, mal=maleate dianion] were rationally designed and synthesized based on flexible multidentate ligands and copper（Ⅱ） maleate. Complexes 1 and 2 were all characterized by elemental analysis, spectroscopic techniques, thermal analysis and single crystal X-ray diffraction analysis. Complex 1 is of an infinite 3-D supramolecular framework constructed by 2-D sheets to contain 1-D helical chains formed by intermolecular hydrogen bond inter- actions between the non-coordinated oxygen atoms from maleate and nitrogen atoms from amino groups of bpapa. Complex 2 also takes a 3-D supramolecular structure, which is built from 2-D rhombic sheets produced by sequential dimer units. Interestingly, three pairs of symmetrical hydrogen bonds generate these dimer units.
基金Project supported by the National Natural Science Foundation of China （No. 20471 048）.
文摘Two novel supramolecular complexes [Cu（bpapa）（dhbd）]·CHaOH （1） and [Cu（bpapa）（ma）]·ma （2） （bpapa= bis[6-（2-pyridylamino）pyrid-2-yl]amine, dhbd=2,3-dihydroxybutanedioate dianion, ma=a-methacrylate） were rationally designed, synthesized and characterized by single crystal X-ray diffraction, IR, electronic spectroscopy and thermogravimetric analyses. Complex 1 was the first oligo-a-pyfidylamino complex based on hydroxypolycarboxylate and self-assembled into a 3D honeycomb configuration network with open channels and tubes containing 1D ladder-shaped double chains formed by hydrogen bonds and aromatic π-π stacking interactions. Complex 2 constructed a 2D supramolecular network extended by 1D chains from dimeric supramolecular synthon through noncovalent supramolecular interactions. In the two complexes, the chelating monohelical ligand adopted all-anti configuration. Density functional theory calculations were applied to 1 and 2.
