Heteropoly Complexes Na0.5Cs2 ? x[H0.5 ? xM |
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Authors: | L O Gavrilova and V N Molchanov |
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Institution: | (1) Belgorod Research Institute of Agriculture, Russian Academy of Agricultural Sciences, Belgorod, Russia;(2) Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 117333, Russia |
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Abstract: | Crystals of novel heterepoly complexes (HPC) Na0.5Cs2 − x
H0.5 − x
M
x
II
XIII(OH)6Mo6O18] · 7−8H2O (MII = Fe, Mn; XIII = Cr, Al) are synthesized. Crystal structures of the complexes Na0.5Cs2 − x
H0.5 − x
FexCr(OH)6Mo6O18] · 7H2O (I) (x = 0.19) and Na0.5Cs2 − x
H0.5 − x
MnxAl(OH)6Mo6O18] · 8H2O (II) (x = 0.22) are determined (space group Pbcn, Z = 8, a = 23.023(4) Å, b = 22.064(4) Å, c = 11.606(3) Å, V = 5895.66 Å3 for I and a = 22.972(9) Å, b = 22.002(8) Å, c = 11.543(5) Å, V = 5834.18 Å3 for II, respectively). The XIII(OH)6Mo6O18]3− ligands were found to be coordinated in monodentate fashion to M atoms due to the participation of a terminal O atom of the
cis-MoO2 group in coordination with the Fe and Mn atoms, which was confirmed by IR data.
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Translated from Koordinatsionnaya Khimiya, Vol. 31, No. 9, 2005, pp. 663–676.
Original Russian Text Copyright ? 2005 by Gavrilova, Molchanov. |
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Keywords: | |
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