Abstract
In order to investigate the bonding of the carbene-like ligand AlCp* towards a transition metal, the compound Cp*AlCr(CO) 5 has been prepared starting from Cr(CO) 5COT and AlCp*. With the help of its crystal structure, some IR spectroscopic data and ab initio calculations, the Al–Cr bonding is discussed. The strong reducing ability of AlCp* leads to a shift in electron density towards the chromium atom and finally to the CO ligands.
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