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A new two-dimensional thallium(I) coordination polymer with 4-hydroxybenzylidene-4-aminobenzoate: Thermal, structural, solution and solvatochromic studies |
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| Authors: | Kamran Akhbari Ali Morsali Matthias Zeller |
| Affiliation: | a Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14155-4838, Tehran, Islamic Republic of Iran b Department of Chemistry, Lorestan University, P.O. Box 6813717133, Khorramabad, Iran c Department of Chemistry, Youngstown State University, One University Plaza, Youngstown, OH 44555-3663, USA |
| Abstract: | A new one-dimensional thallium(I) coordination polymer with a Schiff base ligand, {[Tl(L)(HL)](H2O)0.77}n (1) [HL = 4-hydroxybenzylidene-4-aminobenzoic acid], has been synthesized and characterized. The single-crystal X-ray data of compound 1 show the coordination number of the TlI ions to be seven. The thermal stability of 1 was studied by thermal gravimetric (TG) and differential thermal analyses (DTA). The overall stoichiometry in the solid state is 1:2, but both spectrophotometric and conductometric methods did not support formation of a complex with this stoichiometry in solution. The solvatochromic behaviour of 4-hydroxybenzylidene-4-aminobenzoic acid was also investigated by studying its spectra in a selection of different organic solvents. The observed bands are assigned to electronic transitions. |
| Keywords: | Thallium(I) 4-Hydroxybenzylidene-4-aminobenzoic acid Solvatochromic Solution study |
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