Synthesis,Crystal Structure,IR Spectra and Thermal Analysis of Na[Ag(sac)2] (sac = saccharinate) |
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| Authors: | Veysel T. Yilmaz Prof. Dr. Sevim Hamamci Carsten Thöne |
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| Affiliation: | 1. Kurupelit, Samsun / Turkey, Ondokuz Mayis University, Faculty of Arts and Sciences, Department of Chemistry;2. Braunschweig / Germany, Technische Universität, Institut für Anorganische und Analytische Chemie |
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| Abstract: | The reaction of silver nitrate with sodium saccharinate (Na[sac]) in the presence of 2-pyridinepropanol in aqueous solution yields the title complex, Na[Ag(sac)2]. The compound crystallizes in the triclinic space group  [a = 8.0481(6), b = 9.0587(6), c = 11.1642(8) Å; α = 100.064(3), β = 99.917(3) and γ = 92.367(3)°, Z = 2]. The structure consists of Na+ and [Ag(sac)2]- ions, in which each silver(I) ion is doubly bridged by the sac ligands, exhibiting a distorted 'T' shaped AgN2O coordination arrangement with one long [Ag-Osulfonyl = 2.6390(10) Å] and two shorter bonds [Ag-N = 2.1405(11) and 2.1570(11) Å]. The coordination around silver(I) is trigonal planar and the N-Ag-N bond angle is 158.99(5)°. The Na+ ion is five-coordinate with two carbonyl and three sulfonyl O atoms of the adjacent sac ligands and acts as a bridge between [Ag(sac)2]- units, resulting in a three-dimensional network. The i.r. spectra and thermal decomposition behaviour of Na[Ag(sac)2] are discussed in detail. |
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| Keywords: | Saccharin Silver Crystal structure |
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