A three-dimensional study of the crystal structure of nickel acetate tetrahydrate

Bis[2-(dimethylamino)ethanol-κ2 N,O](2,4-pentanedionato-κ2 O,O′)nickel(II) acetate

“…The cis O-Ni-O and O-Ni-N angles in (I) are close to the ideal octahedral value of 90 , with the exception of the bite angles of the chelating dmaeH groups. Distortions of the trans O-Ni-O angles from the ideal value of 180 are also evident and are comparable with those of related compounds (Hubert-Pfalzgraf et al, 1997;Downie et al, 1971).…”

Speciation of aqueous Ni(II)-carboxylate and Ni(II)-fulvic acid solutions: Combined ATR-FTIR and XAFS analysis

“…Because H-bonding can significantly alter the vibrational bands of carboxylates, the location of H atoms and the lengths of H-bonds in crystals are necessary for evaluating the influence of metal complexation and H-bonding on the vibrational spectra of metal carboxylates. Although some structural analysis of Ni(II)-acetate, Ni(II)-malonate, and Ni(II)-citrate is available, detailed infrared spectral analysis of these phases with respect to hydrogen bonding is missing (Downie et al, 1971;Baker et al, 1983;Nicolai et al, 1998;Ruiz-Pérez et al, 2000). Although ab initio and semi-empirical calculations can help in the evaluation of infrared spectra, the spectral variations recorded for aqueous carboxylates in the absence and presence of Ni(II) are too small to predict using these approaches (Ͻ35 cm Ϫ1 for all examined ligands).…”

Transition metal compatibilization of poly(vinylamine) and poly(ethylene imine)

“…43 Nickel acetate tetrahydrate exhibits a pseudo-octahedral geometry in the solid state with four equatorial waters of hydration and two apical monodentate acetate ligands. 44,45 This complex enhances the glass-transition temperature of poly (4-vinylpyridine) …”