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Three new cobalt complexes,{[Co5(tci)2(bimb)3(3-O)2(H2O)2]·3DMF·4H2O}n(1),{[Co3(tci)2(bib)]·2DMF·2H2O}n(2)and{[Co(Htci)(bpea)0.5]·H2O}n(3)(H3tci=tris(2-carboxyethyl)isocyanurate,bimb=4,4′-bis(imidazol-1-yl)biphenyl,bib=1,4-bis(imidazol-1-yl)benzene,bpea=1,2-bis(4-pyridyl)ethane,DMF=N,N′-dimethylformamide),have been successfully synthesized through the assembly of Co(II)ions,H3tci and different N-donor ligands,respectively.All complexes were structurally characterized by single crystal X-ray diffraction,elemental analyses,IR spectra,thermogravimetric(TG)analyses and X-ray powder diffraction(XRPD).Complex 1 exhibits a 3D three-fold parallel interpenetrated 3D→3D structure with(65·8)CdSO4topology.Complex 2 is built from[Co3(2-Ocarboxyl)2(CO2)4]clusters and linear bib ligands,displaying a two-fold parallel interpenetrated(3,8)-connected(43)2(46·618·84)topology,while complex 3 is a 3D pillar-layered structure involving an infinite–Co–(2-Ocarboxyl)(CO2)–Co–chain.The diverse structures of the three complexes indicate that the skeletons of different N-donor ligands play an important role in the assembly of such different frameworks.In addition,magnetic investigation indicates that besides spin-orbit coupling of Co(II)ions,there exist antiferromagnetic exchange interactions in Co5and Co3clusters of 1 and 2,respectively.
Three new cobalt complexes, {[Co5 (tci) 2 (bimb) 3 (3-0) 2 (H2O) 2] · 3DMF.4H2O} n · 2H2O} n (2) and {[Co (Htci) (bpea) 0.5] · H2O} n (3) (H3tci = tris (2-carboxyethyl) isocyanurate, bimb = yl) biphenyl, bib = 1,4-bis (imidazol-1-yl) benzene, bpea = 1,2-bis (4-pyridyl) ethane, DMF = N, N’-dimethylformamide, have been synthesized synthesized through the assembly of Co (II) ions, H3tci and different N-donor ligands, respectively. All complexes were structurally characterized by single crystal X-ray diffraction, elemental analyzes, IR spectra, thermogravimetric (TG) analyzes and X-ray powder diffraction ). Complex 1 exhibits a 3D three-fold parallel interpenetrated 3D → 3D structure with (65.8) CdSO4topology.Complex 2 is built from [Co3 (2-Ocarboxyl) 2 (CO2) 4] clusters and linear bib ligands, displaying a while complex 3 is a 3D pillar-layered structure involving an infinite-Co- (2-Ocarboxyl) (CO2) - Co-chain.The div erse structures of the three complexes indicate that the skeletons of different N-donor ligands play an important role in the assembly of such different frameworks.In addition, magnetic investigation indicates that either spin-orbit coupling of Co (II) ions, there exist antiferromagnetic exchange interactions in Co5 and Co3clusters of 1 and 2, respectively.