2024-03-28T14:12:18Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/376622021-10-01T11:10:12Zcom_10261_38com_10261_5col_10261_291
Phthalazin-2-ylidenes As Cyclic Amino Aryl Carbene Ligands in Rhodium(I) and Iridium(I) Complexes
Magriz, Antonio
Gómez-Bujedo, Silvia
Álvarez, Eleuterio
Fernández, Rosario
Lassaletta, José M.
Phthalazinium
Metal complexes
Carbenes
X-ray
Electron density
N-heterocyclic carbene
4 páginas, 6 figuras, 1 tabla, 2 esquemas.
The direct metalation of phthalazinium halides with [Rh(tBuO)(COD)]2 or [Ir(tBuO)(COD)]2 led to the isolation of stable [MCl(phthalazin-2-ylidene)X(COD)] (M = Rh, Ir) as a new family of cyclic amino aryl carbene transition metal complexes. The X-ray diffraction analysis of several representatives systematically revealed a relatively short C(aryl)−C(carbene) bond distance of 1.44−1.46 Å, shorter than the typical C(sp2)−C(sp2) single bond, indicating some electron density delocalization from the π system of the aryl ring over the vacant carbene orbital.
We thank the Spanish “Ministerio de Ciencia e Innovación” (grants CTQ2007-61915 and CTQ2007-60244), the European FEDER funds and the Junta de Andalucía (grants 2009/FQM-4537 and 2008/FQM-3833) for financial support.
Peer reviewed
2011-07-11T12:02:11Z
2011-07-11T12:02:11Z
2010-10-04
artículo
http://purl.org/coar/resource_type/c_6501
Organometallics 29(22): 5941-5945 (2010)
0276-7333
http://hdl.handle.net/10261/37662
10.1021/om100723b
en
http://dx.doi.org/10.1021/om100723b
none
American Chemical Society