Electrochemical Synthesis and Structural Characterization of Silver(I) Complexes of N-2-Pyridyl Sulfonamide Ligands with Different Nuclearity: Influence of the Steric Hindrance at the Pyridine
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- 作者：Inmaculada Beloso ; Jesú ; s Castro ; José ; A. Garcí ; a-Vá ; zquez ; Paulo Pé ; rez-Lourido ; Jaime Romero ; and Antonio Sousa
- 刊名：Inorganic Chemistry
- 出版年：2005
- 出版时间：January 24, 2005
- 年：2005
- 卷：44
- 期：2
- 页码：336 - 351
- 全文大小：411K
- 年卷期：v.44,no.2(January 24, 2005)
- ISSN：1520-510X
文摘
A new series of silver complexes, [AgL], of the anionic forms of potentially bidentate N-2-pyridyl sulfonamide ligands[N-(3-methyl-2-pyridyl)-p-toluenenesulfonamide (HTs3mepy), N-(3-methyl-2-pyridyl)mesitylenesulfonamide (HMs3mepy),N-(4-methyl-2-pyridyl)-p-toluenesulfonamide (HTs4mepy), and N-(6-methyl-2-pyridyl)mesitylenesulfonamide (HMs6mepy)]have been prepared by an electrochemical procedure. In addition, heteroleptic complexes of composition [AgLL'](L' = 1,10-phenanthroline and 2,2'-bipyridine) were obtained when the coligand L' was added to the electrolyticphase. The complexes were characterized by microanalysis, IR and 1H NMR spectroscopy, and LSI massspectrometry. In the cases of the compounds [Ag(Ts3mepy)]n (1), [Ag4(Ms3mepy)4] (2a), [Ag(Ms3mepy)]n (2b),[Ag4(Ms6mepy)4] (3a), [Ag2(Ms6mepy)2]n (3b), [Ag2(Ms3mepy)2(phen)2] (5), [Ag2(Ms6mepy)2phen] (7), and [Ag2(Ts4mepy)2(bipy)2] (8), characterization was also carried out by single-crystal X-ray diffraction. Compounds 1 and2b present a polymer structure formed by an {AgN2} digonal core. Compounds 2a and 3a are tetranuclear andalso have a distorted {AgN2} digonal core. Compound 3b is based on binuclear distorted {AgN2} digonal unitsjoined by an intermolecular sulfonyl oxygen atom to produce a stairlike polymer structure. The heteroleptic complexes5 and 8 are dimeric with a distorted {AgN4} tetrahedral geometry, while compound 7 shows two different geometriesaround the metal, distorted {AgN2} digonal and {AgN4} tetrahedral. The supramolecular structures of all speciesare organized by 
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