Widely differing stabilities of molecule-bridged cyanodiiron(III,II) species in non-aqueous solvents. Inorganica Chimica Acta, (291)1-2:66--73, 1999. [PUMA: UV cyano bipyridine pyridylethene ESR pyrimidyltetrazine IR const;mixed electrochem redox;electrochem redox valence redox;pyridylethene comproportionation redox;pyrimidyltetrazine pyrazine pyrimidyltetrazine;iron iron pyrimidyltetrazine;pyrazine prepn]