The magneto-structural correlation of two novel 1D antiferromagnetic chains with different magnetic behaviors

Herein, the magneto-structural correlation concerning two analogous 1D magnetic chains [FeIIMnII(8-quinolinato)4·(H2O)0.25]n (1) and [MnII(8-quinolinato)2]n (2) is investigated in detail. Complex 1 exhibits typical antiferromagnetic behaviors owing to the strong anisotropy accompanying with the position of the intrachain inversion centers, while complex 2 undergoes a spin-flop transition due to weak crystal anisotropy. The strengths of different kinds of supramolecular interactions within 1 and 2 are evaluated and compared using the theory of atoms in molecules.

Graphical abstractThe detail investigation based on the comparison of the two analogous magnetic nanowires demonstrates that the position of intrachain inversion centers and the different crystal anisotropy should be contributive to the different magnetic behaviors within both similar magnetic 1D chain complexes.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Atom in molecules methods are used to evaluate supramolecular interactions. ► The magneto-structural correlation concerning both kindred magnetic nanowires. ► Different crystal anisotropies lead to the different magnetic behaviors.