This article reports preparation, structure, and conducting property of several cation radical salts of organic donors tetramethyltetrathiafulvalene (TMTTF), ethylenedithiotetrathiafulvalene (EDT-TTF), bis(ethylenedithio)tetrathiafulvalene (ET), bis(ethylenedithio)tetraselenafulvalene (BETS) and hexamethylenetetraselenafulvalene (HMTSF) with two novel planar Te-based dianions, TeI 4 2ร and Te 2 I 6 2ร . (ET) 5 Te 2 I 6 1 and (BETS) 5 Te 2 I 6 2 are isostructural. In these Te 2 I 6 2ร salts, intermolecular short I?I contacts form a supramolecular corrugated anion sheet. Donor arrangement is similar to the htype. With lowering temperature, the resistivity of 1 shows a gradual increase followed by a sharp upturn at 110 K. 2 is metallic down to 120 K and shows a gradual increase of the resistivity followed by a clear transition to an insulating state around 60 K. Crystal structure of (ET) 4 TeI 4 3 is based on the ''herring bone'' arrangement of ET molecules similar to the atype. 3 shows a semiconductive behavior around room temperature followed by a transition to an insulating state at 210 K. (EDT-TTF) 4 TeI 4 4, a semiconductor, exhibits a unique twodimensional arrangement of dimerized EDT-TTF molecules.