Abstract
Palladium(II) and copper(II) complexes with 2-(2,2-dimethylhydrazone)pentanone-4 are synthesized for the first time. The compounds are characterized by IR and NMR spectroscopy, elemental and single crystal X-ray diffraction analyses. The palladium complex crystallizes in the space group I4(1)/a; the copper complex crystallizes in the space group P (1) over bar. Both compounds are molecular; the palladium chelate core has a distorted square geometry and that of copper has a distorted tetrahedral geometry. The average M-O and M-N bond lengths are respectively 1.9808(15) angstrom and 2.0427(17) angstrom for M = Pd, 1.915(8) angstrom and 1.97(1) angstrom for M = Cu. The chelate O-M-N angles are 88.32(7)-91.67(7)degrees for M = Pd, 93.37(4)-99.02(5)degrees for M = Cu.