We have synthesized and characterized a new series of chiral nonsymmetric dimesogens, similar to a previous series but bearing a different chemical linkage between the spacer and the shorter mesogen. Unlike the previous one with an ester group in the spacer, the series described in this paper, which is constituted with an ether linkage, does not exhibit any alternance of the mesomorphic behaviour with the spacer parity. But an odd-even oscillation of the transitionnal and physical properties has been observed.