Low-dimensional compounds containing cyano groups. IX. Preparation, structure and properties of the [Cu(bpy)2(dca)]CF3SO3 complex

Burčák, Milan; Potočňák, Ivan; Wagner, Christoph; Jäger, Lothar

doi:10.1007/s11243-004-9173-3

Cited by 5 publications

(1 citation statement)

References 30 publications

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“…In the polyhedron of Cu atom, the two out-of-plane Cu-N1 and Cu-N4 distances (mean 1.9376 Å ) are significantly different and almost linear (see Table 3), with N1-Cu-N4 = 178.40°. The two-in-plane Cu-N2 and Cu-N3 distances (mean 2.0492 Å ) are normal and are longer than the out-of-plane Cu-N distance by 0.1116 Å which is slightly more than the difference of 0.09 Å observed in trigonal bipyramidal Cu complexes [29]. The in-plane Cu-O1 distance is 2.0024 Å which is slightly shorter than the other two in-plane distances.…”

Section: Crystal Structure Of [Cu(me 2 Bpy) 2 (H 2 O)](pic) 2 (2)mentioning

confidence: 71%

Synthesis, crystal structures and DNA-binding properties of two new mononuclear copper(II) complexes

Song

2008

Transition Met Chem

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Two mononuclear copper(II) complexes, [Cu-(bpy) 2 (CH 3 OH)](pic) 2 (1) and [Cu(Me 2 bpy) 2 (H 2 O)](pic) 2 (2) (bpy = 2,2 0 -bipyridine; Me 2 bpy = 4,4 0 -dimethyl-2,2 0 -bipyridine; Hpic = 2,4,6-trinitrophenol), were synthesized and characterized by elemental analyses, conductivity measurements, IR, UV-Visible spectroscopy and single crystal X-ray analyses. Both complexes 1 and 2 are mononuclear compounds. The copper atom in complex 1 is in a distorted square pyramidal geometry with a CuN 4 O chromophore as revealed from the s value (0.25), while the Cu(II) ion in complex 2 displays a distorted trigonal bipyramidal stereochemistry with s = 0.72. Hydrogen bonding interactions and p-p stacking interactions link the mononuclear copper complex 1 or 2 into a 1D infinite chain. The interactions of the two mononuclear complexes with herring sperm DNA (HS-DNA) have been studied by UV-visible absorption titration, fluorescence titration and ethidium bromide (EB) displacement experiments. The results suggest that both complexes might bind to DNA by intercalation.

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Section: Crystal Structure Of [Cu(me 2 Bpy) 2 (H 2 O)](pic) 2 (2)mentioning

confidence: 71%

Synthesis, crystal structures and DNA-binding properties of two new mononuclear copper(II) complexes

Song

2008

Transition Met Chem

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Low-dimensional Compounds Containing Cyano Groups. XI. Preparation, Crystal Structure and Properties of Two Copper(II) Dicyanamide Complexes with PF 6 − Anions

Potočňák

Burčák

Baran

et al. 2005

Transition Met Chem

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From the reaction mixtures containing Cu(NO 3 ) 2 , Na[N(CN) 2 ], KPF 6 and 2,2¢-bipyridine (bpy) or 1,10-phenanthroline (phen) in 1:1:1:2 molar ratios, [Cu(bpy) 2 N(CN) 2 ][Cu(bpy) 2 (H 2 O)](PF 6 ) 3 (1b) and [Cu (phen) 2 N(CN) 2 ]PF 6 (1p) complexes were isolated. Measured i.r. spectra confirm the presence of all functional groups in both complexes and, moreover, they indicate monodentate coordination of dicyanamide through the cyano nitrogen atom in (1p). The structure of (1b) contains two crystallographically independent complex cations. In both, Cu is coordinated by two chelating bpy molecules, and either dicyanamide anion or water molecule fills the fifth position, completing the basal plane. The Cu II atoms in (1p) are coordinated by two chelating phen ligands and by one dicyanamide anion in the equatorial plane. Hexafluorophosphate anions in (1b) and (1p) remain uncoordinated. Besides the ionic forces in both structures, the structure of (1b) is stabilized by strong OAHÁ Á ÁF and OAHÁ Á ÁN hydrogen bonds and, moreover, both structures are stabilized by weak CAHÁ Á ÁF hydrogen bonds and possible p-p interactions between pyridine rings of bpy or phen molecules.

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Ligand effect on the growth reaction of copper(II) dicyanamide complexes: Syntheses, characterization and X-ray single crystal structure analyses of [CuL{N(CN)2}2]n and [CuL′{N(CN)2}2]2 [L=2-(aminoethyl)pyridine and L′=2-(aminomethyl)pyridine]

Chattopadhyay

Banerjee

Banu

et al. 2008

Journal of Molecular Structure

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Low-dimensional compounds containing cyano groups. IX. Preparation, structure and properties of the [Cu(bpy)2(dca)]CF3SO3 complex

Cited by 5 publications

References 30 publications

Synthesis, crystal structures and DNA-binding properties of two new mononuclear copper(II) complexes

Synthesis, crystal structures and DNA-binding properties of two new mononuclear copper(II) complexes

Low-dimensional Compounds Containing Cyano Groups. XI. Preparation, Crystal Structure and Properties of Two Copper(II) Dicyanamide Complexes with PF 6 − Anions

Ligand effect on the growth reaction of copper(II) dicyanamide complexes: Syntheses, characterization and X-ray single crystal structure analyses of [CuL{N(CN)2}2]n and [CuL′{N(CN)2}2]2 [L=2-(aminoethyl)pyridine and L′=2-(aminomethyl)pyridine]

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