نبذة مختصرة : The reactivity of the nacnac Cu(I) compound [L 2 Cu(MeCN)] ( 2 ) (L 2 = [{N(C 6 H 3 Me 2 -2,6)C(Me)} 2 CH] - ) towards complexes containing aromatic cyclo -E 5 ligands (E = P, As) was investigated. The copper complex was reacted with [Cp*Ru(η 5 -E 5 )] (E = P ( 1a-Ru ), As ( 1b-Ru )), yielding the heterometallic complexes [(Cp*Ru)(μ,η 5:2 -E 5 )(L 2 Cu)] (E = P ( 3a ), As ( 3b )). These neutral and molecular complexes represent rare examples of the coordination of group 11 metal complexes to cyclo -E n units and are also rare examples of the coordination compounds of 1a-Ru and 1b-Ru . They were fully characterized by crystallographic and spectroscopic methods and compared to related compounds.
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