peri-bridged naphthalene, dinaphtho[1,8-b,c]-1,5-diselenocin (1), and 1,8-bis(methylseleno)naphthalene (2) have been synthesized. The cyclic voltammogram of 1 and 2 showed one reversible oxidation peak with remarkably low oxidation potential. Selenide 1 in CHCl3 under air and scattered light undergoes oxidation to give the corresponding Se-oxide 11. The peri selenium-selenium interaction of 1 and 2 was