Monomeric and Polymeric Cyclopentadienyl Dysprosium Complexes Based on the Acenaphthene-1,2-diimine Ligand

The reaction of [(Dpp-bian)DyI(Dme)2] (Dpp-bian is 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene, Dme is CH3OCH2CH2OCH3) with Cp*K (Cp* is C5Me5) in toluene followed by crystallization from benzene affords crystals of the 1D coordination polymer [(Dpp-bian)DyIKCp*]n (I)•2.6C6H6 (26%) and crystals of the monomeric complex [(Dpp-bian)DyCp*(Dme)] (II)•1.5C6H6 (12%). The same reaction in 1,2-dimethoxyethane followed by crystallization from benzene makes it possible to isolate only complex II•1.5C6H6 in a yield of 48%. The synthesized compounds are characterized by IR and UV spectroscopy and elemental and thermogravimetric analyses. Their molecular structures are determined by XRD (CIF files CCDC nos. 2298407 (I) and 2298408 (II)).