Citation: Miguel Clemente-Le\'on; Eugenio Coronado; Jos\'e R. Gal\'an-Mascar\'os; Carlos Gim\'enez-Saiz; Carlos J. G\'omez-Garc\'ia; Elisabet Ribera; Jos\'e Vidal-Gancedo; Concepci\'o Rovira; E. Canadell; Vladimir Laukhin (2001). Hybrid Molecular Materials Based upon Organic \p-Electron Donors and Metal Complexes. Radical Salts of Bis(ethylenethia)tetrathiafulvalene (BET-TTF) with the Octahedral Anions Hexacyanoferrate(III) and Nitroprusside. The First Kappa Phase in the BET-TTF Family. Inorganic Chemistry, 40, pp. 3526-3533.