Show simple item record

dc.contributor.authorKitos, Alexandros A.en
dc.contributor.authorMoushi, Eleni E.en
dc.contributor.authorManos, Manolis J.en
dc.contributor.authorPapatriantafyllopoulou, Constantinaen
dc.contributor.authorTasiopoulos, Anastasios J.en
dc.contributor.authorPerlepes, Spyros P.en
dc.contributor.authorNastopoulos, Vassiliosen
dc.creatorKitos, Alexandros A.en
dc.creatorMoushi, Eleni E.en
dc.creatorManos, Manolis J.en
dc.creatorPapatriantafyllopoulou, Constantinaen
dc.creatorTasiopoulos, Anastasios J.en
dc.creatorPerlepes, Spyros P.en
dc.creatorNastopoulos, Vassiliosen
dc.description.abstractSeven copper(ii) complexes with the less bulky (compared to bis-phenyl-substituted imidazoles used in our previous studies) monodentate 2-phenylimidazole (LH) ligand have been prepared from the general CuII/X-/LH (X- = NO3-, ClO4-, BF4-, SO42-, Cl-) reaction system and were structurally characterized by X-ray diffraction. Interestingly, the choice of reaction/crystallization solvent provides two distinct groups of complexes: methanolic solutions favour mostly the formation of dinuclear products {i.e. [Cu2(OMe)2(NO3)2(LH)4]·2MeOH (1a·2MeOH), [Cu2(OMe)2(LH)4](ClO4)2 (2a), [Cu2(OMe)2(LH)4]SiF6 (3), [Cu2(SO4)2(LH)4] (4)}, whereas in the presence of acetonitrile, mononuclear cationic complexes were isolated {i.e. [Cu(LH)4](NO3)2 (1b) and [Cu(LH)4](ClO4)2 (2b)}. A notable exception is the mononuclear complex [CuCl2(LH)2] (5) isolated from methanol. The roles of the solvent and inorganic anions on the complex stoichiometry and molecular structure are critically discussed. The complexes' self-assembly is firmly directed by robust N-H⋯X (X = O, Cl or F) motifs, leading to varying dimensionalities and packing arrangements depending on the coordinated/counter inorganic ions: 1D tapes (for NO3- in 1b), layers (for ClO4- in 2a and 2b, SiF62- in 3 and Cl- in 5) and 3D networks (for NO3- in 1a and SO42- in 4). Intramolecular π⋯π contacts enhance the rigidity of certain complexes, and additional weak intermolecular C-H⋯Y (Y = O, Cl or F), C-H⋯π and π⋯π interactions complement the stability of the packing towards 3D assemblies. Lastly, comparisons of the molecular and supramolecular chemistry of the Cu(ii)/LH complexes with previously characterized Cu(ii) complexes with the bulkier 4,5-diphenylimidazole ligand reveal similarities and differences, which are discussed. © 2016 The Royal Society of Chemistry.en
dc.titleSolvent-dependent access to mono- and dinuclear copper(II) assemblies based on a flexible imidazole liganden
dc.description.endingpage4743 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied SciencesΤμήμα Χημείας / Department of Chemistry
dc.contributor.orcidTasiopoulos, Anastasios J. [0000-0002-4804-3822]
dc.contributor.orcidPapatriantafyllopoulou, Constantina [0000-0002-5652-7747]
dc.contributor.orcidNastopoulos, Vassilios [0000-0003-4190-1342]
dc.contributor.orcidKitos, Alexandros A. [0000-0002-1431-3206]

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record