Crystal Structure of the N-(2-Salicylidene-ethyl)-ethanolaminato-dichloro-iron(III) Complex
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Date
1998
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Abstract
The structures of dimeric Cu complexes of Cu2(C11-
H10C1N02)2,1 Cu2(C14H11N02)2,2 and Cu2(C12H13N02)2,3
in the presence of different tridentate ONO type Schiffbase ligands are reported from this laboratory. The title
compound is a continuation of forming dimeric Cu complexes and a determination of the crystal structure by our
group. The dimeric Cu" complexes bridged with an 0
atom possess subnormal magnetic moments due to a
super-exchange interaction.4-6 In the present work
concerning Cu2(C16H,5N02)2 our aim was to investigate
the effect of the ligand stereochemistry around the Cu
atom.
2-Hydroxy-l-naphthaldehyde (0.73 g, 0.01 mol) was
dissolved in ethanol (50 ml) by heating. Into this
solution acetylacetone (1.0 g, 0.01 mol) was added and
mixed. The mixture was set aside for 24 h. The
precipitated ligand was filtered out and dried in air;
(0.255 g, 0.001 mol) of this ligand was dissolved in 50 ml
of DMF : McCN : McOH (1:1:1) and mixed with
Cu(CH3C00)2•H20 (0.199 g, 0.001 mol) in hot 20 ml
McOH (see also Fig, 1). The mixture was heated to
nearly 80° C and crystals were obtained after allowing the
solution to stand for 24 h at room temperature.
Table 1 shows the crystal and experimental data, while
the final atomic parameters are given in Table 2. The
bond distances and angles are given in Table 3.
The reported complex is centrosymmetric, and the
asymmetric unit is bridged via the 0 atom of the 2-oxy-1-
naphthylmethyliminomethyl group of the ligand (Fig. 2).