A range of new π-conjugated ethynyl-and diethynyl-benzene ligands has been synthesised and their spectroscopic characterisation carried out, most notably via IR and 1H NMR. X-ray crystal structures were obtained for three of these ligands and one unusual ruthenium complex. Both the 4-ethynyl-and 2, 5-diethynyl-benzene cores of these compounds have been functionalised through organic transformations by addition of an 9-anthracenyl. This ...