The reaction of RuClH(CO)(PPh3)(3) with HO2CC6H4-p-O2CC6H4-p-O (CH2)(3)CH3
gives the complex RuCl(O2CC6H4-p-O2CC6H4-p-OBu) (CO) (PPh3)(2). The crystal
structure shows, in the solid state, molecules of the complex ordered para
llel to one another giving layers. This compound has a bulky metallic fragm
ent but however shows a calamitic liquid crystal behavior induced by the ca
rboxylate ligand. (C) 1999 Elsevier Science S.A. All rights reserved.