Synthesis and Characterization of New Picolinate Metal Complexes

This article describes a novel method for the preparation of stable picolinate complexes of Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) metal ions. Characterization was performed by microanalyses, magnetic moments, IR, UV-vis, and NMR spectral studies. A single-crystal X-ray study of diaquobis-picoli...

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Bibliographic Details
Published in:Synthesis and reactivity in inorganic, metal-organic, and nano-metal chemistry metal-organic, and nano-metal chemistry, 2005-10, Vol.35 (9), p.695-702
Main Authors: Orjiekwe, Chike L., Fabiyi, Festus A. S., Edward, Dennis A. O.
Format: Article
Language:English
Subjects:
characterizatio
coordination
diaquabis-picolinatocobalt(II) dihydrat
magnetic moment
metal ion
microanalyse
new picolinate complexe
octahedral geometr
single-crystal X-ra
UV-Vi
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Summary:This article describes a novel method for the preparation of stable picolinate complexes of Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) metal ions. Characterization was performed by microanalyses, magnetic moments, IR, UV-vis, and NMR spectral studies. A single-crystal X-ray study of diaquobis-picolinatocobalt(II) dihydrate confirmed the octahedral geometry of the complexes. The unit cell dimensions are a=9.8280 Å, b=5.194 Å, c=14.581 Å, β=90.26°. The space group is P 21/n and the measured density is 1.694 g cm −3 with Z=2 (Z=atoms per unit cell). The crystal class is monoclinic. Coordination is through the pyridine nitrogen and carboxylate oxygen donor atoms.
ISSN:1553-3174
1553-3182
DOI:10.1080/15533170500301895