The correlation between magnetism and structures for new solvent free iron(III) and chromium(III) homoleptic 8-quinolinato complexes

► Crystallography, magnetism, and DFT study of solvent free Feq3 (1) and Crq3 (2). ► 1D void channels exist in complex 1 with the potential for selective absorption. ► DFT studies show a clear correlation between assembly structures and bulk magnetism.