Tetrabromocobal Tates of #x3B1;, #x3C9; -Alkanediammonium: Preparation and Characterization

摘要

For the first time it has been possible to prepare Co(II) tetrabromocobaltates of empirical formula of (AAH2)CoBr4where AA is the diamine: 1,2-ethylenediamine(en), 1,3-triethylenediamine(tn), 1,4-tetramethylenediamine(bn), 1,5-pentamethylenediamine (pn), 1,6-hexamethylenediamine(hn), 1,7-heptamethylenediamine(hpn), 1,8-octamethylenediamine(on) and 1,9-nonamethylenediamine(nn). Paramagnetic susceptibilities and infrared and electronic spectra of the compounds were used to establish their stereochemistry. Racah parameters(B) and the splitting energy of the crystal field in Dq units have been calculated from the electronic spectra.