We will report on the synthesis of some new metal-dithiolene-derivative complexes which are considered to be promising components for new organic conductors. They include 1) unsymmetrical metal-dithiolene complexes with terminal cyano groups and 2) metal-complexes with radialene-type ligands. The group 1) complexes are designed for extended intermolecular interaction via the CN groups. In the course of this study a double-decker type Ni-complex has been synthesized and structurally characterized. The group 2) complexes are designed with the expectation that the pi-conjugation on a molecule expanding towards two different directions should enable two-dimensional molecular overlapping modes. Spectroscopic data and X-ray structural study have revealed that they have well-developed conjugated pi-electronic systems over the whole molecule and thus good planarity.