[Ag7(H){S2CC(CN)2}6]6−: An Anionic Heptanuclear Silver Hydride Cluster Compound Stabilized by Dithiolate Ligands
| Autor: | Ying-Yann Wu, C. W. Liu, Ping-Kuei Liao, Ching-Shiang Fang, Kuan-Guan Liu |
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| Rok vydání: | 2019 |
| Předmět: |
Chemistry
Hydride Nanochemistry 02 engineering and technology General Chemistry Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Biochemistry 0104 chemical sciences Catalysis Ion Crystallography Tetrahedron Cluster (physics) General Materials Science 0210 nano-technology Luminescence |
| Zdroj: | Journal of Cluster Science. 30:1185-1193 |
| ISSN: | 1572-8862 1040-7278 |
| DOI: | 10.1007/s10876-019-01538-3 |
| Popis: | In our attempts to identify probable intermediates in the preparation of anionic silver hydride cluster [Ag8(H){S2CC(CN)2}6]5− under the condition of excess NaBH4, we isolated and analyzed a new cluster compound, namely, [Bu4N]6[Ag7(H){S2CC(CN)2}6]. We report here the synthesis, crystal structure, characterizations by various spectroscopic (UV–Vis, IR, multinuclear NMR, elemental analyses) techniques and the luminescent properties of this cluster. Its X-ray crystal structure reveals that the cluster contains a distorted; tricapped tetrahedral silver core enclosed an interstitial hydride anion and is surrounded by six 1,1-dicyanoethylene-2,2-dithiolate ([S2CC(CN)2]2−, i-MNT) ligands. The presence of hydride inside the heptanuclear silver cluster is unequivocally certified by both 1H and 109Ag NMR spectroscopies. The title compound represents the first atomic precisely anionic Ag7-H skeleton with a non-disordered, tricapped tetrahedral silver framework. |
| Databáze: | OpenAIRE |
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