Wydział Chemii

J. Maroszová

Jan Moncol

Zdeňka Padělková

R. Sillanpää

Tadeusz Lis

Marian Koman

2011

Central European Journal of Chemistry

9

453-459

10.2478/s11532-011-0023-9

Naukowa

Angielski

Artykuł

The crystal and molecular structure of [Cu(nif)2(4-PM)2]•CH3OH (1) and [Cu(2-Clbz)2(4-PM)2(H2O)] (2), (where nif = niflumate anion, 2-Clbz = 2-chlorobenzoate anion and 4-PM is the 4-pyridylmethanol), have been determinated by X-ray crystallography. The Cu2+ cation in (1), is coordinated by two pairs of oxygen atoms from asymmetric bidentate niflumate anions and by a pair of pyridine nitrogen atoms from monodentate 4-pyridylmethanol ligands in trans position forming an extremely elongated bipyramid. The Cu2+cation in (2), is coordinated by a pair of oxygen atoms from monodentate 2-chlorobenzoate anions, further by a pair of pyridine nitrogen atoms from monodentate 4-pyridylmethanol ligands and finally by a water oxygen atom forming a tetragonal-pyramidal coordination polyhedron. The molecules of both complexes in crystal structures are linked by O–H···O hydrogen bonds, which created a three-dimensional hydrogen-bonding networks. The π-π stacking interactions are also observed in crystal structures of complex 2. The spectral properties (IR and electronic spectra) of both complexes were also investigated

Copper complexes, carboxylates, supramolecular chemistry, hydrogen bonds, crystal structure

http://dx.doi.org/10.2478/s11532-011-0023-9

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