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Synthesis, Structural and Spectroscopic Characterization of Four [(η 6 ‐PAH)Cr(CO) 3 ] Complexes (PAH = Pyrene, Perylene, Chrysene, 1,2‐Benzanthracene)
Author(s) -
Arrais Aldo,
Diana Eliano,
Gervasio Giuliana,
Gobetto Roberto,
Marabello Domenica,
Stanghellini Pier Luigi
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300369
Subject(s) - chemistry , chrysene , pyrene , perylene , ligand (biochemistry) , aromaticity , anthracene , moiety , photochemistry , stereochemistry , crystallography , organic chemistry , molecule , biochemistry , receptor
Abstract The thermal reaction of hexacarbonylchromium with the polycyclic aromatic hydrocarbons (PAHs) pyrene, perylene, chrysene and 1,2‐benzanthracene has afforded four organometallic complexes of the type [(η 6 ‐PAH)Cr(CO) 3 ], whose unprecedented structures were obtained by single‐crystal X‐ray analysis. The topology of the coordination of the Cr(CO) 3 fragment and its asymmetry with respect to the coordinating ring may depend on the opportunity to maintain the maximum aromaticity of the complexed ligand. DFT calculations, 1 H NMR, FT‐IR and Raman spectroscopy have been used to elucidate the type of interaction between the PAH ligand and the carbonylmetal moiety, giving insight into the ligand‐to‐metal donor capacity and the intra‐ and intermolecular interactions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)