Coexistence of Spin Canting and Metamagnetism in a One-Dimensional Mn(III) Complex Bridged by a Single End-to-End Azide

Two manganese(III) azide complexes capped with tetradentate
Schiff bases were characterized structurally and magnetically. The
replacement of halogens on the Schiff bases leads to a drastic
structural alteration from a dimer (1) bridged by phenoxide to a
one-dimensional chain (2) linked by azide in a single end-to-end
mode. Notably, magnetic studies of 2 show the concomitant
existence of spin canting and metamagnetism.

本研究对两类由四齿希夫碱（Schiff base）封端的叠氮化锰(III)配合物开展了结构与磁性表征。将希夫碱配体上的卤素原子进行取代后，配合物的结构发生显著改变：从以酚氧基桥联的二聚体（1）转变为以叠氮根以单端-端模式桥联的一维链状结构（2）。值得注意的是，对配合物2的磁性研究表明其同时存在自旋倾斜与变磁性行为。