Calcium complex of 2,5-dihydroxybenzoic acid (gentisic acid): synthesis,crystal structure,and spectroscopic properties |
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| Authors: | M Kalinowska L Mazur E Regulska A Korczak G Świderski W Lewandowski |
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| Institution: | 1. Division of Chemistry, Bialystok University of Technology, Bialystok, Polandm.kalinowska@pb.edu.pl;3. Department of General and Coordination Chemistry, Maria Curie-Sklodowska University, Lublin, Poland;4. Division of Chemistry, Bialystok University of Technology, Bialystok, Poland;5. Institut des Sciences at Techniques, University of Mont HouyLe Mont Houy, Valenciennes, France |
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| Abstract: | The synthesis, crystal structure, and spectral characteristics (IR, Raman, and 1H and 13C NMR) of a monomeric hexa(aqua)calcium compound, viz. Ca(C7H5O4)2(H2O)6]·H2O (C7H5O4 = 2,5-dihydroxybenzoate), are reported. The central Ca(II) located on a twofold axis is eight coordinate in an approximate square antiprismatic environment, bonded to two monodentate 2,5-dihydroxybenzoate ligands via the carboxylate oxygen, and six waters. The adjacent monomeric units are linked with the aid of several O–H?O hydrogen bonds. |
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| Keywords: | Calcium complex 2 5-dihydroxybenzoic acid gentisic acid plant phenolic compound X-ray crystallography |
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