1H NMR spectra and crystal structure of the nickel(II) complex with ethyl 5,5-dimethyl-2,4-dioxohexanoate aroylhydrazones

Nickel(II) complexes NiL n ∙ NH 3 ( n = 1–5) with the products of condensation of ethyl 5,5-dimethyl-2,4-dioxohexanoate with aromatic acid hydrazides (H 2 L 1 –H 2 L 5 ) were synthesized. The complexes were studied by elemental analysis and IR and 1 H NMR spectroscopy. The structure of the complex NiL 1 ∙ NH 3 was determined by X-ray diffraction (CIF file CCDC no. 1057268).