Syntheses, structures, Hirshfeld surface analyses and magnetic properties of a series of homopolynuclear half-salamo-based complexes.

Graphical abstract The self-assembling of di-, tri- and tetra-nuclear metal(II) complexes shows propeller, butterfly and windmill type motifs, respectively. In complexes 1 and 2 , the ideal size, shape as well as strong coordination ability of OAc− as an anion significantly stabilize the aesthetic structure, while in complex 3 , the hydroxyl radical of an unexpected ligand H 2 L′, which derived from the cleavage of HL are coordinated with three Co(II) atoms at the same time. Meanwhile, complexes 1 , 2 and 3 possess a self-assembling 2D, 3D and 0D supramolecular structures by abundant noncovalent interactions. Besides, magnetic properties and Hirshfeld surface analyses were discussed. Abstract Two newly di- and tri-nuclear Cu(II) and Ni(II) complexes constructed from a half-salamo chelating ligand (HL: 2-[ O -(1-ethyloxyamide)]oxime-6-methoxyphenol), [Cu 2 (L) 2 (μ-OAc) 2 ] (1) and [{Ni 3 (μ-OAc) 2 (L) 2 (OAc) 2 ]·CHCl 3 (2), and one tetranuclear Co(II) complex [Co 4 (L′) 4 (MeOH) 4 ] (3) based on an unexpected ligand H 2 L′ derived from the cleavage of HL have been synthesized and characterized by elemental analyses, IR, UV–vis spectra, and single crystal X-ray diffraction analyses. The single crystals of complexes 1 , 2 and 3 in the process of synthesis are obtained through different routes. The complex 1 includes two Cu(II) atoms, two completely deprotonated (L)− units and two μ-acetate ions, which displays a propeller-type motif. The complex 2 contains three Ni(II) atoms, two completely deprotonated (L)− units, two μ-acetate ions, two chelating acetate ions and one crystallizing chloroform molecule, the crystal structure of complex 2 reveals a butterfly-type motif. The complex 3 is made up of four Co(II) atoms, four completely deprotonated (L′)2− units (HL′: 2-[ O -(1-hydroxyethyl)]oxime-6-methoxyphenol) and four coordinated methanol molecules, which shows a windmill-type motif. Besides, magnetic properties and Hirshfeld surface analyses were discussed. [ABSTRACT FROM AUTHOR]