Abstract
The new aryl hydrazone ligand, 1, featuring an acetyl group of a previous compound of reference replaced by a trifluoroacetyl moiety and a corresponding Cu(II) complex, 2, have been synthesized and studied by X-ray crystallography. A distinct influence of the fluorine substitution relative to the nonfluorinated parent compound is manifested both in the free ligands and Cu(II) complexes, and in particular has an effect on the packing structures mainly due to C–H ··· F contacts.
Acknowledgments
We gratefully acknowledge financial support by the German Ministry of Science and Technology (BMBF-Project ‘BioMon’ 02110120).