Di-μ<sub>2</sub>-chlorido-dichloridobis(dimethylformamide)tetrakis[μ<sub>3</sub>-1-(2-oxidobenzoyl)-2-(2-oxo-2-phenylethanethioyl)hydrazine-1,2-diido]octacopper(II) dimethylformamide disolvate

The asymmetric unit of the title complex, {[Cd2(C10H10N3O3S)2(C10H8N2)(NO3)2]·4C3H7NO}n, consists of one CdII cation, one N-[2-(2-hydroxybenzoyl)carbamothioyl]acetamidate ligand, half a 4,4′-bipyridyl ligand, one coordinating nitrate anion and two dimethylformamide solvent molecules of crystallization. The bipyridine ligand is completed by inversion symmetry. The metal cation exhibits a distorted pentagonal–bipyramidal coordination geometry provided by two O and one N atoms of the thiosemicarbazide ligand, two O atoms of the nitrate anion, one S atom of a neighbouring thiosemicarbazide ligand and one 4,4′-bipyridine N atom. The bridging role of the thiosemicarbazide ligand through the S atom leads to centrosymmetric binuclear units, which are further linked by 4,4′-bipyridine units, forming polymeric chains extending along the b-axis direction. An intramolecular N—H⋯O hydrogen bond occurs. The crystal structure also features N—H⋯O and O—H⋯O hydrogen bonds, leading to the formation of a three-dimensional network.

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Syntheses and structures of discrete copper(II) and cadmium(II) supramolecular complexes based on 1,4-diacylthiosemicarbazone ligands

Jiao

Zhang

et al. 2016

Acta Crystallogr C

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Thiosemicarbazides and their metal complexes have attracted considerable interest because of their biological activities and their flexibility, which allows the ligands to bend and rotate freely to accommodate the coordination geometries of various metal centres. Discrete copper(II) and cadmium(II) complexes have been prepared by crystallization of N-[2-(2-hydroxybenzoyl)hydrazinecarbonothioyl]propanamide (H3L) with Cu(CH3COO)2 or Cd(NO3)2 in a dimethylformamide/methanol mixed-solvent system at room temperature, affording the complexes di-μ-acetato-bis{μ4-1-[(2-oxidophenyl)carbonyl]-2-(propanamidomethanethioyl)hydrazine-1,2-diido}tetracopper(II) dimethylformamide disolvate, [Cu4(C11H10N3O3S)2(C2H3O2)2]·2C3H7NO, (I), and bis{μ2-[(2-hydroxyphenyl)formamido](propanamidomethanethioyl)azanido}bis[(4,4'-bipyridine)nitratocadmium(II)] dihydrate, [Cd2(C11H12N3O3S)2(NO3)2(C10H8N2)2]·2H2O, (II). Complex (I) consists of four Cu(II) cations, two μ4-bridging trianionic ligands and two μ2-bridging acetate ligands, while complex (II) is composed of two Cd(II) cations, two μ2-bridging monoanionic ligands, two nitrate ligands and two 4,4'-bipyridine ligands. These discrete complexes are connected by hydrogen bonds and van der Waals interactions to form a three-dimensional supramolecular architecture. Compared with (I), the phenolic hydroxy group and hydrazide N atom of the thiosemicarbazide ligand of (II) are not involved in coordination and lead to a binuclear Cd(II) complex. This different coordination mode may be attributed to the larger ionic radius of the Cd(II) ion compared with the Cu(II) ion.

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Di-μ₂-chlorido-dichloridobis(dimethylformamide)tetrakis[μ₃-1-(2-oxidobenzoyl)-2-(2-oxo-2-phenylethanethioyl)hydrazine-1,2-diido]octacopper(II) dimethylformamide disolvate

Cited by 3 publications

References 17 publications

Discrete polynuclear manganese nanorods: syntheses, crystal structures and magnetic properties

Discrete polynuclear manganese nanorods: syntheses, crystal structures and magnetic properties

Poly[[(μ₂-4,4′-bipyridyl-κ²N:N′)bis{μ₂-N-[2-(2-hydroxybenzoyl)carbamothioyl]acetamidato-κ⁴O,N,O′:S}bis(nitrato-κ²O,O′)dicadmium] dimethylformamide tetrasolvate]

Syntheses and structures of discrete copper(II) and cadmium(II) supramolecular complexes based on 1,4-diacylthiosemicarbazone ligands

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Di-μ2-chlorido-dichloridobis(dimethylformamide)tetrakis[μ3-1-(2-oxidobenzoyl)-2-(2-oxo-2-phenylethanethioyl)hydrazine-1,2-diido]octacopper(II) dimethylformamide disolvate

Cited by 3 publications

References 17 publications

Discrete polynuclear manganese nanorods: syntheses, crystal structures and magnetic properties

Discrete polynuclear manganese nanorods: syntheses, crystal structures and magnetic properties

Poly[[(μ2-4,4′-bipyridyl-κ2N:N′)bis{μ2-N-[2-(2-hydroxybenzoyl)carbamothioyl]acetamidato-κ4O,N,O′:S}bis(nitrato-κ2O,O′)dicadmium] dimethylformamide tetrasolvate]

Syntheses and structures of discrete copper(II) and cadmium(II) supramolecular complexes based on 1,4-diacylthiosemicarbazone ligands

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Di-μ₂-chlorido-dichloridobis(dimethylformamide)tetrakis[μ₃-1-(2-oxidobenzoyl)-2-(2-oxo-2-phenylethanethioyl)hydrazine-1,2-diido]octacopper(II) dimethylformamide disolvate

Poly[[(μ₂-4,4′-bipyridyl-κ²N:N′)bis{μ₂-N-[2-(2-hydroxybenzoyl)carbamothioyl]acetamidato-κ⁴O,N,O′:S}bis(nitrato-κ²O,O′)dicadmium] dimethylformamide tetrasolvate]