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artículo con referato
"X-Ray Study of Two Nickel Complexes Stabilized by the Pentathionate Anion"
E. Freire, S. Baggio and R. Baggio
Aust. J. Chem. 54(2) (2001) 131-134
The crystal and molecular structure of two novel nickel complexes stabilized by pentathionate counterions, namely acetato(O,O′)diaqua biquinoline(N,N′)nickel(II) hemipentathionate dihydrate (1) and diterpyridine (N,N′,N″)-nickel(II) pentathionate tetrahydrate (2), are presented. Compound (1) is monoclinic, C2/c, a 21.5628(4), b 11.3354(2), c 20.2873(4) Å, β 92.433(1)°, V 4954.2(2) Å3, Z 8, conventional R (on F) being 0.042 for 3444 No observed reflections (I > 2σ(I)). Compound (2) is triclinic, P1-, a 12.461(1), b 12.781(1), c 23.542(2) Å, α 80.246(5), β 79.714(5), γ 88.680(6)°, V 3635.9(6) Å3, Z 4, R 0.062, No 6255. In both compounds the pentathionate anions act as counterions of the octahedral complex cations and have been formed in situ through reactions involving the thiosulfate group present in the synthesis process.
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