Several copper and platinum complexes with TTP (2,5-bis(1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalene) dithlolato ligands, Cu(ttpdt)(2) (1) and Pt(ttpdt)(bpy) (2), have been prepared. The tetrakis(ethylthio) and tetrakis(hexylthio) derivatives of neutral Cu(ttpdt)2 showed relatively high conductivity of sigma(rt) = 10(-2) S cm(-1) on compressed pellets. On the other hand, radical cation salts of 1 and 2 exhibited moderate conductivity of sigma(rt) = 10(-2) -10(-4) S cm(-1).