Mn<sup>II</sup> Complexes with a Novel Triacid as Ligand: Synthesis and Characterization

<div><p>A novel aromatic tricarboxylic acid of 4,4′-(2-carboxypropane-1,3-diyl)dibenzoic acid (H<sub>3</sub>L) was used to prepare two Mn<sup>II</sup> complexes of [Mn<sub>3</sub>(L)<sub>2</sub>(bpy)<sub>2</sub>]<sub>n</sub> (<b>1</b>) and [Mn<sub>3</sub>(L)<sub>2</sub>(phen)<sub>2</sub>]<sub>n</sub> (<b>2</b>), where bpy = 2,2′-bipyridine and phen = 1,10-phenanthroline. The single crystal structures, thermal stability, and the magnetism of <b>1</b> and <b>2</b> were measured and discussed in this article. According to the magnetism measurements, the Curie constants and the Weiss constants should be 12.29 K·cm<sup>3</sup>·mol<sup>−1</sup> (g = 1.94, S = 5/2) and −9.80 K for <b>1</b> and 11.11 K·cm<sup>3</sup>·mol<sup>−1</sup> (g = 1.83, S = 5/2) and −9.26 K for <b>2</b>, respectively.</p></div>