X-ray powder and single crystal structures of two unprecedented families of bpca-based 1-D magnetic chains (Hbpca = bis(2-pyridylcarbonyl)amine)

Two unprecedented families of mono-dimensional complexes were designed using the bis(2-pyridylcarbonyl)aminate (bpca) ligand. The structure of the Cu(bpca)(CN) chain was solved ab initio from X-ray powder diffraction data and refined by Rietveld methods, while the structure of [Cu1 − xFex(bpca)](ClO4) (x = 0, 0.23) (Figure) was elucidated by the more classical X-ray single crystal diffraction technique. The latter chains are the first ones exclusively based on the bpca ligand.