| The potential application value of nitrogenous aromatic carboxylic acid complexes in drug delivery,molecular recognition,gas adsorption and separation has attracted more and more attention.In this paper,fifteen complexes with novel structure,based on4,4'-?1H-1,2,4-triazol-1-yl?methylene-bis?benzonic acid??H2TZMB?ligands with transition metal ions were synthesized and were characterized by X-ray diffraction,IR spectroscopy,the powder X-ray diffraction,and elemental analysis.The complexes 1,2,3,6,7,10,11 and12 have been determined by fluorescence spectrum analyses.The complexes 5,8,9 and 15have been investigated magnetic properties.Results show that 1 and 2 have good recognition abilities for acetone,NP and Fe3+,which can be be used as candidate materials for fluorescent probes to detect toxic substances in water.Moreover,complexes 5,8,9 and 15 have antiferromagnetic interaction.The molecular formula of the complexes 1-15 are as follows,[Zn?TZMB?]n?1?{[Zn?TZMB??H2TZMB?]·?C2H5OH?0.5?H2O?2.5}n?2?{[Cd?TZMB??DMA?]·?H2O?0.5}n?3?{[Co?HTZMB?2?H2O?2]·H2O}n?4?{[Mn2?TZMB?2?H2O??DMA?]·DMA}n?5?[Cd?TZMB??1,4-bib?0.5]·?H2O?1.5}n?6?[Zn?TZMB??1,4-bib?0.5]}n?7?{[Mn2?TZMB?2?1,4-bib?0.5?H2O?2]·?H2O?2?DMA?}n?8?{[Co2?TZMB?2?1,4-bib?]·?H2O?1.5}n?9?{[Cd?TZMB??1,3-bimb?]·?H2O?2}n?10?{[Cd?TZMB??1,4-bimb?]·H2O}n?11?{[Cd?HTZMB?2?4,4?-bibp?]·?4,4?-bibp??H2O?0.5}n?12?{[Ni?TZMB??1,4-bipb??H2O?]·?H2O?}n?13?{[M?TZMB??4,4-bibp??H2O?0.5]·?H2O?3.5}n?1415?[M=Ni?14?,Co?15?]Complex 1 is a 2-node 3,6-connected 3D dual-core network structure with point symbol(611.84)?63?2.Complex 2 is a 2D network structure that interacts with hydrogen bonds to form a 3D supermolecular structure.Complex 3 is also the 3D structure with 2 node 4,8-connected and the point symbol is{44.62}2{48.618.82}.Complex 4 is a one-dimensional chain structure.The complex 5 is a 4 node 5,5,5,5-connected 3D multicore structure,and its point symbol is{45.65}{46.64}.The complex 6 is 4,4-connected 3D framework,and the point symbol is?47.84??4.72.83?.Complex 7 is a 3,4-connected 3D framework and the topos type is dmc?topos&RCSR.ttd?,with the point symbol being{4.82}{4.85}.Complex 8 is a 5-connected dual-core3Dnetworkstructurewithpointsymbolis{3.4.5}{3.43.53.62.7}{3.45.54.611.711.83.9}{4.5.6}{42.6}.Complex 9 is 3,4-connected 3D structure.The topos type of 9 is dmc?topos&RCSR.ttd?with point symbol?4.82??4.85?.Complex 10 is a 5-connected2D structure with point symbol?48.62?.Complex 11 is 4,4-connected 3D structure with point symbol?4.85?.Complex 12 is the second node,4,5-connected to the 3D structure,with point symbol{66}{69.8}.Complex 13 a three-node 3,4,6-connected 3D structure,its point symbol{32.4.5.63.7.82}{32.42.5.64.72.84}{32.4}.The complexes 14 and 15 are heterogeneous isomorphism,which are 3D structure with four nodes,3,4,4,6-connected.The point symbol is{3.43.52.63.74.82}2{3.63.7.8}2{32.4.52.6}{4.6.7}2. |
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