Crystal and molecular structure of bis(acetylacetonato) nickel(II)diethanol

The title compound, Ni(C₅H₇O₂)₂· (C₂H₅OH)₂, crystallizes in the triclinic system with unit cell dimensionsa = 8·923,b = 5·283,c = 9·522 Å, = 81·4, = 106·1 and = 103·3 °;Z= 1, space groupP¯1. The structure was solved by Fourier methods, and the 1557 three-dimensional counter diffraction intensity data (CuK) were used in a least-squares refinement to a conventional unweightedR of 0·053. The nickel atom is surrounded by the four oxygen atoms of the two acetylacetone ligands and the two oxygen atoms of the ethanol molecules, forming a tetragonally-distorted octahedron with acetylacetone oxygen atoms at 1·997 and 2·026 Å and ethanol oxygen atoms at 2·140 Å. Parallel molecules are linked into columns along theb-axis by hydrogen bonds between the ethanol oxygen atom of one molecule and an acetylacetone oxygen atom of a neighboring molecule.Presented at the Amer. Cryst. Ass'n. Summer Meeting, Ames, Iowa, Aug. 1971.Taken in part from the M.S. Thesis in Physics of T. S. Burke, Syracuse University, 1971.