Iron(III) complexes of hexadentate NSO-donor ligands, 1,3-di(o-salicylaldiminophenylthio)propane and 1,2-di(o-salicylaldiminophenylthio)xylene
                                
                                    
                                        作者:Shefali Pal、Sailendra Nath Poddar、Gurucharan Mukherjee                                    
                                    
                                        DOI:10.1016/s0277-5387(00)83071-5
                                    
                                    
                                        日期:1993.10
                                    
                                    Iron(III) complexes of hexadentate Schiff base N2S2O2 donor ligands, 1,3-di-(o-salicylaldiminophenylthio)propane (H2DSALPTP) and 1,2-di(o-salicylaldiminophenylthio)xylene (H2DSALPTX) have been synthesized and characterized. The ligands gave dark green iron(III) complexes [Fe(DSALPTP)]FeCl4 and [Fe(DSALPTX)]FeCl4 when reacted with anhydrous FeCl3. The Mossbauer data of these two complexes suggest the presence of two iron sites, one of which is octahedral and the other tetrahedral. The octahedral site is the complex cationic species and the tetrahedral site is the anion FeCl4-. On the other hand, Fe(ClO4)3.6H2O reacted with the ligands to give the complexes [Fe(DSALPTP)]ClO4 and [Fe(DSALPTX)]ClO4. The iron(III) centre in the complex cationic species of the first two complexes are low-spin and for the latter two complexes high-spin. Though a colour change from yellow to green occurred when the ligands reacted with Fe(NO3)3-9H2O, no compound could be isolated in the solid state from the solution.