A series of cyanobiphenyl palladium complexed liquid crystals was synthesized. The Pd complexation of cyanobiphenyl mesogen results the enhancement of thermal stability and more ordered mesophase. pi-Complexation of Cp*Ru(Cp*=C(5)Me(5)) moiety to the mesogenic group of rod-coil molecule shows the suppression of phase transition temperature without the change of the mesophase.