Prathapachandra Kurup, M R; Sheeja, S R; Neema, Ani Mangalam(Elsevier, 2010)
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Abstract:
Mn(II) complexes derived from a set of acylhydrazones were synthesised and characterized by elemental
analyzes, IR, UV–vis and X-band EPR spectral studies as well as conductivity and magnetic susceptibility
measurements. In the reported complexes, the hydrazones exist either in the keto or enolate form, as evidenced
by IR spectral data. Crystal structures of two complexes are well established using single crystal
X-ray diffraction studies. In both of these complexes two equivalent monoanionic ligands are coordinated
in a meridional fashion using cis pyridyl, trans azomethine nitrogen and cis enolate oxygen atoms positioned
very nearly perpendicular to each other. EPR spectra in DMF solutions at 77 K show hyperfine sextets
and in some of the complexes the low intensity forbidden lines lying between each of the two
hyperfine lines are also observed
Prathapachandra Kurup, M R; Seena, E B; Mini, Kuriakose(Springer, February 9, 2010)
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Abstract:
Oxovanadium(IV/V) complexes of 2-hydroxyacetophenone-
3-hydroxy-2-naphthoylhydrazone (H2L)
have been synthesized and characterized. The complexes
were characterized by elemental analyses, IR, electronic
and EPR spectra. The oxovanadium(V) complex [VOL
(OCH3)] is crystallized in two polymorphic forms, denoted
by 1a and 1b, with space groups Pn21a and P 1, respectively.
Both have distorted square pyramidal structures.
Description:
Struct Chem (2010) 21:599–605
DOI 10.1007/s11224-010-9589-7