Naslov
Hydrogen Bonded Dimer N-(2-hydroxyethyl)-2-oxy-1-naphthaldimine and its Oxo-vanadium(V) Complex

Autori
Kaitner, Branko ; Pavlović, Gordana

Izvornik
Croatica Chemica Acta (0011-1643) 72 (1999), 2-3; 607-620

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
tridentate naphthaldimine; oxo-vanadium(V) complex; dimerization by hydrogen bonding; X-ray diffraction; thermal analysis; FT IR spectroscopy

Sažetak
N-(2-hydroxyethyl)-2-oxy-1-naphthaldimine is a potential tridentate ligand prepared in a condensation reaction from 2-hydroxy-1-naphthaldehyde and 2-aminoethanol using catalytic amounts of triethylamine. Its vanadium(V) coordination compound was obtained by a template reaction from the methanol solution upon oxidation VO^2^+-VO^3^+ in air. Physico-chemical properties of both compounds were examined by thermogravimetric analysis, differential scanning calorimetry and FT IR spectroscopy. These results supplied some elements of structural information. Nevertheless, entire sterochemistry of both non-coordinated ligand and metal complex was elucidated by the X-ray structural determination. The ligand forms molecular complex by dimerization via intermolecular O-H^.^.^.O hydrogen bonding. In the metal complex four square pyramid basal plane coodination places are occupied with dinegative tridentate ligand ONO donor atoms and a methoxy group. All V-O bond distances are significantly different acording to the nature of the functional group oxygen atoms belong to. The vanadium complex is an example of fairly rare pentacoordinated square pyramidal V^V species.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA