Structural Characterization of a Hydrated 1:1 Scandium(III) Picrate-Picric Acid Adduct

J.M. Harrowfield, Brian Skelton, Allan White

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Hydrated scandium(III) picrate has been crystallized in association with excess picric acid to give a 1:1 adduct as material sufficiently substantial to allow single-crystal X-ray structural characterization at c. 295K. [SC(PiC)2(OH2)4](pic)(Hpic).approximately 8.2H2O is monoclinic, P2(1)/c, a 16.304(9), b 20.061(6), c 14.587(9) angstrom, beta 112.98(5)-degrees, Z = 4; R was 0.078 for 2632 reflections [I > 3sigma(I)]. The scandium is six-coordinate, the coordination sphere comprising a trans pair of phenolic picrate oxygen atoms [Sc-0, 2.019(8), 2.046(8) angstrom; Sc-O-C, 147.6(9), 147.7(9)-degrees] and four water molecule oxygens at appreciably longer distances [Sc-O, 2.100(g)-2.121(8) angstrom].
Original languageEnglish
Pages (from-to)397-403
JournalAustralian Journal of Chemistry: an international journal for chemical science
Publication statusPublished - 1994


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