XPS-Characterization of Heterometallic Coordination Compounds with Optically Active Ligands
Por:
Avila-Torres, Y, Huerta, L, Barba-Behrens, N
Publicada:
1 ene 2013
Categoría:
Chemistry (miscellaneous)
Resumen:
The heterometallic optical complexes
[Cu2Co(S,S(+)cpse)(3)(H2O)(3)]center dot 4H(2)O (1) and
[Cu2Ni(S,S(+)cpse)(3)(H2O)(3)]center dot 10H(2)O (2) were obtained
from the mononuclear copper(II) compound by the addition of nickel(II)
or cobalt(II) chlorides, where (H(2)cpse) is the acetyl amino alcohol
derivative N-[2-hydroxy-1(R)-methyl-2(R)-phenylethyl]-N-methylglycine.
In comparison with the homotrinuclear copper(II) compound
[Cu-3(S,S(+)cpse)(3)(H2O)(3)]center dot 8H(2)O reported previously,
the substitution of a copper(II) atom by one cobalt(II) ion gave place
to a heterotrinuclear compound 1, which presents
ferromagnetic-antiferromagnetic behaviour. When substituting a
copper(II) by a nickel(II) ion, the trinuclear compound 2 showed an
antiferromagnetic coupling. The magnetic behaviour of the
heterotrinuclear compounds is driven by the nature of the metal ion
which was introduced in the copper(II) triangular array. The ligand and
its coordination compounds were characterized by IR, UV-Vis-NIR. Their
chemical was confirmed by photoelectron spectroscopy (XPS).
Filiaciones:
Avila-Torres, Y:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Quim Inorgan, Mexico City 04510, DF, Mexico
Huerta, L:
Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, Mexico
Barba-Behrens, N:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Quim Inorgan, Mexico City 04510, DF, Mexico
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