Structural and magnetic properties of iron(II) complexes with 1,4,5,8,9,12-hexaazatriphenylene (HAT).
Structural and magnetic properties of iron(II) complexes with 1,4,5,8,9,12-hexaazatriphenylene (HAT).
复制标题
铁 (II) 与 1,4,5,8,9,12-六氮杂苯并菲 (HAT) 配合物的结构和磁性。
作者：
M. Shatruk;A. Chouai;A. Prosvirin;K. Dunbar
Fe（II）盐与配体1，4，5，8，9，12-六氮杂苯并菲（HAT）的反应导致四种新化合物的分离和表征：[Fe3（HAT）（H2O）12]（SO4）3.3.3H2O（1）、[Fe2（HAT）（SO4）（H2O）5]（SO4）.2H2O.CH3OH（2）、[Fe2（HAT）（SO4）（H2O）5]（SO4）.3H2O（3）和[Fe3Cl5（HAT）（CH3OH）4（H2O）]Cl（4）。化合物1结晶为三核簇，其中HAT作为三螯合配体。化合物2和3是两种具有无限一维结构的多晶型物，其中Fe原子与HAT配位，然后通过桥接硫酸根阴离子连接到链中。化合物4表现出类似的链结构，但具有桥接氯配体。新化合物的磁性行为表明Fe（II）中心之间通过HAT配体的弱反铁磁耦合。
Reactions of Fe(II) salts with the ligand 1,4,5,8,9,12-hexaazatriphenylene (HAT) led to the isolation and characterization of four new compounds: [Fe3(HAT)(H2O)12](SO4)3.3.3H2O (1), [Fe2(HAT)(SO4)(H2O)5](SO4).2H2O.CH3OH (2), [Fe2(HAT)(SO4)(H2O)5](SO4).3H2O (3), and [Fe3Cl5(HAT)(CH3OH)4(H2O)]Cl (4). Compound 1 crystallizes as a trinuclear cluster in which HAT acts as a tris-chelating ligand. Compounds 2 and 3 are two polymorphs of an infinite one-dimensional structure in which the Fe atoms are coordinated to HAT and then connected into the chain through bridging sulfate anions. Compound 4 exhibits a similar chain structure, but with bridging chloride ligands. The magnetic behavior of the new compounds is indicative of weak antiferromagnetic coupling between the Fe(II) centers through the HAT ligand.