Novel multinuclear transition metal(II) complexes based on an asymmetric Salamo-type ligand: Syntheses, structure characterizations and fluorescent properties

An novel asymmetric Salamo-type ligand H4L and its three novel supramolecular multinuclear Cu(II), Zn(II) and Cd(II) complexes have been synthesized and characterized by FT-IR, UV–vis spectra and X-ray crystallography. The obtained crystal structures are very interesting. In addition, the photophysical properties of the Cu(II), Zn(II) and Cd(II) complexes have also been discussed.