artículo con referato
"trans-Bis(hexafluoroacetylacetonato-κ2O,O′)bis[trans-1-(2-pyridyl)-2-(4-pyridyl)ethylene-κN4]copper(II)"
J. Granifo, M. Vargas and R. Baggio
Acta Cryst. E 62(12) (2006) m3456-m3458
Abstract
The title compound, trans-[Cu(C5HF6O2)2(C12H10N2)2], consists of monomeric units built up by a copper metal ion (lying on a center of symmetry) octahedrally coordinated by one oxygen-chelating hexafluoroacetylacetonate (hfac) group, a nitrogen-bound 1-(2-pyridyl)-2-(4-pyridyl)ethylene (2,4-bpye) ligand, and their symmetry equivalents generated by the symmetry center at the metal site. The monomers interact with each other through π–π bonding between pyridine rings, and are organized as chains running along [111]. The stabilization of this architecture of chains is associated with a number of weak C–H⋯F hydrogen bonds.
DIVISION MATERIA CONDENSADA