Complexes of iron(III) salen and saloph Schiff bases with bridging 2,4,6-tris(2,5-dicarboxyphenylimino-4-formylphenoxy)-l,3,5-triazine and 2,4,6-tris(4-carboxyphen-ylimino-4'-formylphenoxy)-l,3,5-triazine

摘要

Four new trinuclear Fe(III) complexes involving tetradenta Schiff bases N,N~1-bis(salicylidene) ethylenediamine-(salenH_2) or bis(salicylidene)-o-phenylenediamine-(salophH_2) with 2,4,6-tris(2,5-dicarboxyphenylimino-4-formyl-phenoxy)-l,3,5-triazine (DCPI-TRIPOD) or 2,4,6-tris(4-carboxyphenylimino-4'-formylphenoxy)-l,3,5-triazine (CPI-TRIPOD) have been synthesized and characterized by means of elemental analysis carrying out ~1H-n.m.r.,i.r.spectroscopy,thermal analyses and magnetic susceptibility measurements.The complexes can also be characterized as high-spin distorted octahedral Fe~(III) bridged by carboxylic acids.The tricarboxylic acids play a role as bridges for weak antiferromagnetic intramolecular exchange.