Gv. Romanenko et al., Structure of metal bischelates with enaminoketone derivatives of sterically hindered 2-imidazoline, J STRUCT CH, 41(6), 2000, pp. 1035-1040
Crystal structures of the first Cu(II), Ni(II), and Pd(II) bischelates with
enaminoketone derivatives based on the 2-imidazoline heterocycle have been
determined. In all the compounds, the coordinated heterocycles have art en
velope conformation leading to a puckered structure of the complex molecule
s.