P. Chinn et al., STRUCTURE OF A PHENYL DIOXOCYCLAM NICKEL-COMPLEX, Acta crystallographica. Section C, Crystal structure communications, 49, 1993, pp. 1284-1286
The molecule, te-tradecane-2,4-dionato-N,N',N'',N''')nickel(II), has n
ear-mirror symmetry with its two amine N-H bonds directed to the same
side of the coordination plane. The Ni-N(amide) bonds are shorter than
the Ni-N(amine) bonds [mean values 1.880 (2) and 1.937 (2) angstrom,
respectively]. The crystal contains an extensive network of hydrogen b
onds.