Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/37360
Share/Impact:
Título : Solid-State Structures and Solution Studies of Novel Cyclopentadienyl Mercury Compounds
Autor : Grirrane, Abdessamad, Resa, I., Río, Diego del, Rodríguez, Amor, Álvarez, Eleuterio, Mereiter, Kurt, Carmona Guzmán, Ernesto
Palabras clave : Mercury cyclopentadienyl complexes
Kcp salts
Electronic structure
X-ray
Solid-state structures
Fecha de publicación : 27-Apr-2007
Editor: American Chemical Society
Resumen: New mercury cyclopentadienyl complexes Hg(η1-Cp‘)Cl have been prepared by the reaction of HgCl2 and the appropriate KCp‘ salts or by the transmetalation of HgCl2 with ZnCp‘2 (Cp‘ = C5Me4H, 1; C5Me4But, 2; C5Me4SiMe3, 3; C5H4SiMe3, 4). By contrast, only the SiMe3-substituted bis(cyclopentadienyl) derivatives, Hg(C5Me4SiMe3)2 (5) and Hg(C5H4SiMe3)2 (6), can be isolated by the above synthetic procedures and the appropriate ratio of reagents or from HgCp‘Cl and KCp‘. Solution NMR studies reveal nonfluxional behavior of the SiMe3-substituted complexes 3, 5, and 6. X-ray studies of the solid-state structures show that the six compounds contain η1-Cp‘ ligands, with linear or almost linear C−Hg−Cl or C−Hg−C coordination environments. The two HgCp‘2 compounds, 5 and 6, have the expected insular structures, but the HgCp‘Cl derivatives show supramolecular associations by means of weak secondary Hg···Cl interactions. Thus, the HgCp‘Cl compounds 1, 3, and 4 form three different polymeric chain structures with typically two Hg···Cl interactions of 3.04−3.46 Å per mercury. By contrast, 2 forms a tetramer, [Hg(C5Me4SiMe3)Cl]4, with a cubelike arrangement of four Hg and four Cl atoms. Density functional theory has been used to investigate the electronic structure of the compounds.
Descripción : 10 páginas, 9 figuras, 5 tablas, 3 esquemas.
Versión del editor: htt://dx.doi.org/10.1021/ic0624672
URI : http://hdl.handle.net/10261/37360
ISSN: 0020-1669
DOI: 10.1021/ic0624672
Citación : Inorganic Chemistry 46(11): 4667-4676 (2007)
Referencias: 17461576
Appears in Collections:(IIQ) Artículos

Files in This Item:
There are no files associated with this item.
Show full item record
 
CSIC SFX LinksSFX Query


Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.