1H NMR RESEARCH İNTO DİAMAGNETİC 1,2,4, 1′ ,2′, 4′ -HEXAMETHYLFERROCENE, PARAMAGNETİC HEXAFLUOROPHOSPHATE OF 1,2,4, 1′ ,2′ ,4′ -HEXAMETHYLFERRİCİNİUM AND ELECTRON EXCHANGE BETWEEN THEM
N.Z.Ibrahimova, I.G.Мaммadоv, G.М.Jafarov, R.М.Salimov, I.U.Lyatifov