Ferromagnetic behavior of Fe(C5Me5)2+.bul. TCNE-.bul.. Structural and magnetic characterization of decamethylferrocenium tetracyanoethenide, Fe(C5Me5)2+.bul. TCNE-.bul..cntdot.MeCN and decamethylferrocenium pentacyanopropenide, Fe(C5Me5)2+.bul. C3(CN)5- | Synapse