Transfer Complexes and Radical Cation Salts of 1,2-Dichalcogenoles

Charge-Transfer Complexes and Radical Cation Salts of 1,2-Dichalcogenoles 

Data on the UV-absorption spectra and the polarographic oxidation potentials of some 1,2-ditelluroles and its analogs are listed in Table II. 

As expected on going from sulfur to the corresponding tellurium-containing compounds, an increase is observed in the electron-donor prop- 

Naphtho[l,8-cd, 2]ditellurole 46 c-c6hI2 257,267,383 sh 410 + 0.45 + 0.43 77JA255 78ANY382 87M15 88BCJ2013 

Perchlorates of the radical cations 38 (87MI5) and iodides of the radical cations 40 (88MI8) were prepared by electrochemical oxidation, whereas the salts of the tetratelluratetracene radical cation (TTeT)2X were formed through its oxidation by CuX2 (X = Cl,Br) in DMF solution (811ZV1432). The electric conductivity of the latter as well as that of their selenium analogs achieves values of 1-2 ohm em.  

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