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Hydrothermal Synthesis and Structure of Organically Templated Chain, Layered and Framework Scandium Phosphates by Stuart R. Miller; Alexandra M.Z. Slawin; Philip Wormald; Paul A. Wright is a Materials Science article available to read on EtoBox.

What is Hydrothermal Synthesis and Structure of Organically Templated Chain, Layered and Framework Scandium Phosphates about?

Four scandium phosphate-based structures have been prepared hydrothermally in the presence of the primary diamines ethylenediamine and diaminobutane and the primary amine cyclohexylamine and characterised by single crystal and powder X-ray diffraction, 31 P and 45 Sc solid-state MAS NMR and chemical analysis. Charge balancing protons in the structures are located using bond valence sum calculations and postulated hydrogen bonding networks. Compound 1, [(H 3 NC 2 H 4 NH 3 ) 3 ][Sc 3 (OH) 2 (PO 4 ) 2 (HPO 4 ) 3 (H 2 PO 4 )], P 1, a 1⁄4 5:4334ð6Þ, b 1⁄4 8:5731ð9Þ, c 1⁄4 16:3022ð18Þ ( A, a 1⁄4 79:732ð4Þ, b 1⁄4 83:544ð4Þ, g 1⁄4 80:891ð5Þ1, Z 1⁄4 2, is built up of scandium phosphate ribbons, based on trimers of ScO 6 octahedra linked by OH groups. These trimers are joined through phosphate groups bound through three oxygens, and are decorated by phosphate groups linked by a single oxygen atom. The ribbons are arranged parallel to the a-axis and linked one to another by fully protonated ethylenediammonium ions. Compounds 2, [(H 3 NC 4 H 8 NH 3 ) 3 ][(Sc(OH 2 )) 6 Sc 2 (HPO 4 ) 12 (PO 4 ) 2 ], P 3, a 1⁄4 13:8724ð3Þ, c 1⁄4 9:4351ð11Þ ( A, Z 1⁄4 1, and 3, [(H 3 NC 4 H 8 NH 3 ) 2 (H 3 O)][Sc

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Author

Stuart R. Miller; Alexandra M.Z. Slawin; Philip Wormald; Paul A. Wright

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0022-4596)

Published

2005

Language

EN

Field

Materials Science (Physical Sciences)