Sulfonic Acid Synthesis And Structural Studies Of Metal Complexes

In this thesis, two sulfonic compounds with well water-solvability, 4,6-dihydroxy- benzene-1,3-disulfonic acid(H₂LA) and genistein-3'-sulfonic acid (HLB), were synthesized through sulfonation reaction. The crystal structure of HLB·2H₂O was determined. Four novel complexes, [K₂LA(H₂O)]n(1), [Zn(C₂H₃N)(H₂O)₅]LA·3H₂O (2), [Fe(C₂H₃N)₂(H₂O)4] LA(3), {[NaLB(H₂O)]·H₂O} n(4), were synthesized using the two compound as ligands and the IR,TG and crystal structures of these compounds were characterized.Among the four compounds, compound 1 represent 3-D structure, compound 2,3 shows 0-D structure, compound 4 was 1-D chain structure.Two coordinate styles of K⁺ were found in compound 1. One K⁺ was coordinated by seven O atoms, five came from five sulfonic group of different H₂LA, two came from one sulfonic group of the sixth H₂LA. The other K⁺ was also coordinated by seven O atoms, but four came from four sulfonic group of different H₂LA, two came from one sulfonic group of the fifth H₂LA, the last one came from one water molecule.Water molecule and acetonitrile were coordinated to Zn²⁺ and Fe³⁺ in compound 2,3,In compound 4, Na⁺ was coordinated by six O atoms, four came from sulfonic group and hydroxy group of two HLB, one came from the hydroxy group of the third HLB, the last one in the axial positions came from one water molecule.