Mr. Bermejo et al., Crystallisation solvent influence on the crystal structures of Mn-II and Ni-II complexes with 2,6-bis(1-salicyloylhydrazonoethyl)pyridine, H(4)daps, Z ANORG A C, 626(2), 2000, pp. 506-513
Citations number
26
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
Neutral manganese and nickel complexes of the empirical formulae Mn(H(2)dap
s)(H2O)(0.5) and Ni(H(2)daps) (H2O)(1.5)(CH3CN) have been prepared by elect
rochemical syntheses. The structures of the complexes formed from solvents
with different donor ability were investigated. Recrystallisation of Mn(H(2
)daps)(H2O)(0.5) from pyridine and ethanol yields [Mn(H(2)daps)(py)(2)] 1 a
nd [Mn(H(2)daps)(C2H5OH) . (H2O)] 2. Slow evaporation of dichloromethane an
d methanol solutions of Ni(H(2)daps)(H2O)(1.5)(CH3CN) allows the isolation
of single crystals of [Ni-2(H(2)daps)(2)] . CH2Cl2 4 and [Ni-2(H(2)daps)(2)
(CH3OH)(2)] . 3 CH3OH . H2O 5, suitable for X-ray diffraction studies. Recr
ystallisation of 4 from pyridine yields [Ni-2(H(2)daps)(2)(pv)(2)] . CH2Cl2
6, previously characterised by us. This study shows the versatility of the
H(4)daps ligand and the influence that the crystallisation solvent can hav
e on the crystal structure of these complexes.