| Organic flexible polydentate ligands with transition metal cations through self-assembly form coordination polymers possess variety structure and unique property, therefore use the flexible polydentate ligand synthesized coordination polymers have an great significanceTwelve coordination polymers forming using flexible ligand 1,3,5-tri(triazol-1-ylmethyl)-2,4,6-trimethylbenzene(ttmb) and transition metal cations Cd(Ⅱ),Zn(Ⅱ),Ni(Ⅱ),Cu(Ⅱ),Co(Ⅱ) namely, {[Cd(ttmb)2(H2O)2](ClO4)2·7H2O}n (1), {[Cd(ttmb)2(H2O)2](NO3)2·6H2O}n (2), {[Cd(ttmb)2](SO4)·16H2O}n (3), {[Cd3(ttmb)2(trans-1,4-cda)3(H2O)4]·4H2O}n (4), {[Zn(ttmb)2(H2O)2](ClO4)2·5H2O·0.5CH3CH2OH}n (5), {[Zn(ttmb)2(H2O)2](NO3)2·4H2O}n (6), {[Zn(ttmb)(dca)2]·0.5H2O}n (7), {[Zn(ttmb)(cis-1,4-cda)]·8H2O}n (8), {[Ni3(ttmb)2(H2O)6Cl6]·3H2O}n (9), {[Ni(ttmb)2(H2O)2](NO3)2·4H2O}n (10), {[Cu3(ttmb)2(H2O)6Cl6]·3H2O}n (11), {[Co3(ttmb2(H2O6Cl6]·3H2O}n (12)。The twelve compounds have been characterized by elemental analysis, IR spectra, luminescence analyses, thermogravimetric analyses and single crystal X-ray. luminescence analysis spectroscopy of (1), (2) and (3) and studied the complex (9), (10), (11) and (12) the thermogravimetric propertyThe ligand ttmb shows the cis,cis,cis-conformation in 1, 3, 5, 9, 11 and 12, but the cis,trans,trans-conformation in 2, 4, 6, 7, 8 and 10. The flexible ligand usually as bridge to connect two or three centers and form one-dimensional double-stranded chain, two-dimensional network structure and three-dimensional network to form stable complexes, the flexible ligand may change itself conformation.
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