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Título: | A five-coordinate compound with inverted ligand field: An unprecedented geometry for silver(III) |
Autor: | Joven Sancho, Daniel CSIC ORCID; Baya, Miguel CSIC ORCID; Martín, Antonio CSIC ORCID; Orduna, Jesús CSIC ORCID ; Menjón, Babil CSIC ORCID | Fecha de publicación: | 2021 | Editor: | Wiley-VCH | Citación: | Angewandte Chemie - International Edition 60(51): 26545-26549 (2021) | Resumen: | By using suitable synthetic procedures, we have first isolated the square-planar organosilver(III) compounds [PPh4][trans-(CF3)2AgX2] [X=Cl (1 a), Br (2 a)]. The geometry and stereochemistry of the chloro-derivative 1 a have been unambiguously established by single-crystal X-ray diffraction (SC-XRD) methods. Following our calculations on the relative stability of the cis-/trans-[(CF3)2AgX2]− couples (X=F, Cl, Br, I), the experimentally obtained compounds 1 a and 2 a appear to be kinetically favored stereoisomers. They display some tendency to associate an additional X− ligand affording rare five-coordinate AgIII species [(CF3)2AgX3]2−. Interestingly, compound [PPh4]2[(CF3)2AgBr3] (3) has been identified by SC-XRD methods as the first AgIII derivative with trigonal symmetry in general and trigonal bipyramidal geometry in particular. This unusual five-coordinate species also exhibits inverted ligand field. | Versión del editor: | https://doi.org/10.1002/anie.202112449 | URI: | http://hdl.handle.net/10261/261101 | DOI: | 10.1002/anie.202112449 | E-ISSN: | 1433-7851 |
Aparece en las colecciones: | (ISQCH) Artículos |
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