尿素合Fe(Ⅲ)配合物的室温固相合成与表征

Room Temperature Solid State Synthesis and Characteristies of The Urea Complexes with Iron(III)

分别以三氯化铁、硫酸铁和尿素为原料,通过室温固相反应得到了[Fe{OC(NH2)2}6]Cl3和[Fe{OC(NH2)2}6]2(SO4)3两种固体配合物.采用化学分析方法、IR、TG-DTA等手段对其组成、结构、热稳定性等性能进行了表征.结果表明,配合物中Fe(III)与尿素的物质的量之比为1∶6,配位原子为羰基氧原子,属于单齿配位,尿素的熔点有所升高且稳定性增加,是一种优良的长效氮肥.

Two kinds of solid complexes of [Fe[OC（NH2）2}6]Cl3和[Fe{OC（NH2）2}6]2（SO4）3 were synthesized by the room temperature solid state reaction with the material of iron trichloride or fete sulfate and urea. The behaviour of composition structure characteristics and thermostability were characterized by the chemical analysis, IR, TG-DTA, and so on. The results showed that the amount-of-substance ratio of iron（Ⅲ） of complexes and urea was 1 ： 6, the coordinating atom was the oxygen of carbonyl group of the monodentate ligand, and the melting point of urea was lifted and stability was reinforced, which was a kind of good long lasting nitrogen fertilizer.