Synthesis and structural characterisation of a mixed-valent cerium complex containing a (H2O)38 cluster
Synthesis and structural characterisation of a mixed-valent cerium complex containing a (H2O)38 cluster
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Date
2008-01-01
Authors
Prasad, T. K.
Rajasekharan, M. V.
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Abstract
A new H-bonded (H2O)38 water cluster was identified in a mixed-valent cerium dipicolinate complex [CeIV(dipic)3CeIII(H2O)8][CeIV(dipic)3CeIII(H2O) 7CeIV(dipic)3] · 20H2O (dipicH2=dipicolinic acid). Such a large cluster built around an inversion centre and occupying 20% of the unit cell volume is supported by the bulky acceptor rich complex ions in the crystal lattice. The compound crystallises in the triclinic crystal system with space group P1̄ and unit cell parameters; a=16.5285(9) Å, b=17.1905(10) Å, c=19.5220(11) Å, =76.0440(10)°, β=79.0180(10)°, γ=65.6370(10)Å, V=4877.7(5) Å3.
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Keywords
(H O) 2 38,
Crystal structure,
Dipicolinic acid,
Mixed-valent cerium complex,
Water cluster
Citation
Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry. v.38(1)