The coordination chemistry of two symmetric fluorene-based organic ligands with cuprous chloride

In two complexes, Cu^I atoms connect the symmetric 2,7-bis­(1H-imidazol-1-yl)-9,9-dimethyl-9H-fluorene and 2,7-bis­(1H-imidazol-1-yl)-9,9-dipropyl-9H-fluorene ligands into one-dimensional chains. In the former, a {[Cu^ICl₂]^-} unit adheres to the one-dimensional chain through a weak Cu...Cu inter­action, while in the latter, a {[Cu^I₂Cl₄]^2-} unit links two different chains into a one-dimensional rope-ladder-type chain.