The ligand 1,10-phenanthroline-2,9-dicarbaldehyde dioxime can act both as a tridentate and as a tetradentate ligand - Synthesis, characterization andcrystal structures of its transition metal complexes

Citation
A. Angeloff et al., The ligand 1,10-phenanthroline-2,9-dicarbaldehyde dioxime can act both as a tridentate and as a tetradentate ligand - Synthesis, characterization andcrystal structures of its transition metal complexes, EUR J INORG, (9), 2000, pp. 1985-1996
Citations number
39
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
1434-1948 → ACNP
Issue
9
Year of publication
2000
Pages
1985 - 1996
Database
ISI
SICI code
1434-1948(200009):9<1985:TL1DCA>2.0.ZU;2-Q
Abstract
The polydentate ligand L has been prepared by treating 1,10-phenanthroline- 2,9-dicarbaldehyde with hydroxylamine. This ligand and its complexes with Z n-II, Cu-II, Cd-II, Co-II and Ni-II were designed as potential agents for n ucleic acid hydrolysis and have been characterized by elemental analysis, N MR spectroscopy, ES-MS and X-ray diffraction analysis. The ligand acts as a tridentate ligand in most cases, to form monomeric trigonal-bipyramidal, s quare-pyramidal or square-bipyramidal structures. In the case of metallatio n with cadmium nitrate it acts as a tetradentate ligand to give a pentagona l-bipyramidal structure. Dissociation of the oxime group to an oximate, whi ch acts as an anionic bridging ligand, was observed in the case of metallat ion with zinc acetate thus giving rise to dimers and/or polymers.