Syntheses and structures of three new scandium selenites: Sc-2(SeO3)(3) center dot H2O, Sc-2 (SeO3)(3) center dot 3H(2)O and CsSc3(SeO3)(4) (HSeO3)(2) center dot 2H(2)O

Magnus G. Johnston, William T. A. Harrison

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Abstract

Three new hydrated scandium selenites have been hydrothermally synthesized as single crystals and structurally and physically characterized. Sc-2(SeO3)(3).H2O crystallizes as a new structure type containing novel ScO7 pentagonal bipyramidal and ScO6+1 capped octahedral coordination polyhedra. Sc-2(SeO3)(3).3H(2)O contains typical ScO6 octahedra and is isostructural with its M-2(SeO3)(3).3H(2)O (M = Al, Cr, Fc, Ga) congeners. CsSc3(SeO3)(4)(HSeO3)(2).2H(2)O contains near-regular ScO6 octahedra and has essentially the same structure as its indium-containing analogue. All three phases contain the expected. pyramidal [SeO3](2-) selenite groups. Crystal data: Sc-2(SeO3)(3).3H(2)O, M-r = 524.85, trigonal, R3c (No. 161), a = 9.6481 (5) Angstrom, c = 20.7832(12) Angstrom, V = 1675.45(16) Angstrom(3), Z=6, R(F)=0.018, wR(F-2) = 0.036; Sc-2(SeO3)(3).H2O, M-r = 488.82, orthorhombic, P2(1)2(1)2(1) (No. 19), a = 6.5913 (6) Angstrom, b = 11.1596(11) Angstrom, c = 12.1368(11) Angstrom, V = 892.74(14) Angstrom(3), Z = 4, R(F) = 0.051, wR(F-2) = 0.086; CsSc3(SeO3)(4)(HSeO3)(2).2H(2)O, M-r = 1067.60, orthorhombic, Pnma (No. 62), a = 16.670 (3) Angstrom, b = 13.167(3) Angstrom, c = 9.575(2) Angstrom, V = 2101.6(7) Angstrom(3), Z = 4, R(F) = 0.035, wR(F-2) = 0.070. (C) 2004 Elsevier Inc. All rights reserved.

Original languageEnglish
Pages (from-to)4316-4324
Number of pages9
JournalJournal of Solid State Chemistry
Volume177
Issue number11
DOIs
Publication statusPublished - Nov 2004

Keywords

  • hydrothermal synthesis
  • crystal structure
  • scandium selenium

Cite this

@article{975d62dce7d846f9aade3e98da5c4367,
title = "Syntheses and structures of three new scandium selenites: Sc-2(SeO3)(3) center dot H2O, Sc-2 (SeO3)(3) center dot 3H(2)O and CsSc3(SeO3)(4) (HSeO3)(2) center dot 2H(2)O",
abstract = "Three new hydrated scandium selenites have been hydrothermally synthesized as single crystals and structurally and physically characterized. Sc-2(SeO3)(3).H2O crystallizes as a new structure type containing novel ScO7 pentagonal bipyramidal and ScO6+1 capped octahedral coordination polyhedra. Sc-2(SeO3)(3).3H(2)O contains typical ScO6 octahedra and is isostructural with its M-2(SeO3)(3).3H(2)O (M = Al, Cr, Fc, Ga) congeners. CsSc3(SeO3)(4)(HSeO3)(2).2H(2)O contains near-regular ScO6 octahedra and has essentially the same structure as its indium-containing analogue. All three phases contain the expected. pyramidal [SeO3](2-) selenite groups. Crystal data: Sc-2(SeO3)(3).3H(2)O, M-r = 524.85, trigonal, R3c (No. 161), a = 9.6481 (5) Angstrom, c = 20.7832(12) Angstrom, V = 1675.45(16) Angstrom(3), Z=6, R(F)=0.018, wR(F-2) = 0.036; Sc-2(SeO3)(3).H2O, M-r = 488.82, orthorhombic, P2(1)2(1)2(1) (No. 19), a = 6.5913 (6) Angstrom, b = 11.1596(11) Angstrom, c = 12.1368(11) Angstrom, V = 892.74(14) Angstrom(3), Z = 4, R(F) = 0.051, wR(F-2) = 0.086; CsSc3(SeO3)(4)(HSeO3)(2).2H(2)O, M-r = 1067.60, orthorhombic, Pnma (No. 62), a = 16.670 (3) Angstrom, b = 13.167(3) Angstrom, c = 9.575(2) Angstrom, V = 2101.6(7) Angstrom(3), Z = 4, R(F) = 0.035, wR(F-2) = 0.070. (C) 2004 Elsevier Inc. All rights reserved.",
keywords = "hydrothermal synthesis, crystal structure, scandium selenium",
author = "Johnston, {Magnus G.} and Harrison, {William T. A.}",
year = "2004",
month = "11",
doi = "10.1016/j.jssc.2004.08.026",
language = "English",
volume = "177",
pages = "4316--4324",
journal = "Journal of Solid State Chemistry",
issn = "0022-4596",
publisher = "ACADEMIC PRESS INC ELSEVIER SCIENCE",
number = "11",

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TY - JOUR

T1 - Syntheses and structures of three new scandium selenites: Sc-2(SeO3)(3) center dot H2O, Sc-2 (SeO3)(3) center dot 3H(2)O and CsSc3(SeO3)(4) (HSeO3)(2) center dot 2H(2)O

AU - Johnston, Magnus G.

AU - Harrison, William T. A.

PY - 2004/11

Y1 - 2004/11

N2 - Three new hydrated scandium selenites have been hydrothermally synthesized as single crystals and structurally and physically characterized. Sc-2(SeO3)(3).H2O crystallizes as a new structure type containing novel ScO7 pentagonal bipyramidal and ScO6+1 capped octahedral coordination polyhedra. Sc-2(SeO3)(3).3H(2)O contains typical ScO6 octahedra and is isostructural with its M-2(SeO3)(3).3H(2)O (M = Al, Cr, Fc, Ga) congeners. CsSc3(SeO3)(4)(HSeO3)(2).2H(2)O contains near-regular ScO6 octahedra and has essentially the same structure as its indium-containing analogue. All three phases contain the expected. pyramidal [SeO3](2-) selenite groups. Crystal data: Sc-2(SeO3)(3).3H(2)O, M-r = 524.85, trigonal, R3c (No. 161), a = 9.6481 (5) Angstrom, c = 20.7832(12) Angstrom, V = 1675.45(16) Angstrom(3), Z=6, R(F)=0.018, wR(F-2) = 0.036; Sc-2(SeO3)(3).H2O, M-r = 488.82, orthorhombic, P2(1)2(1)2(1) (No. 19), a = 6.5913 (6) Angstrom, b = 11.1596(11) Angstrom, c = 12.1368(11) Angstrom, V = 892.74(14) Angstrom(3), Z = 4, R(F) = 0.051, wR(F-2) = 0.086; CsSc3(SeO3)(4)(HSeO3)(2).2H(2)O, M-r = 1067.60, orthorhombic, Pnma (No. 62), a = 16.670 (3) Angstrom, b = 13.167(3) Angstrom, c = 9.575(2) Angstrom, V = 2101.6(7) Angstrom(3), Z = 4, R(F) = 0.035, wR(F-2) = 0.070. (C) 2004 Elsevier Inc. All rights reserved.

AB - Three new hydrated scandium selenites have been hydrothermally synthesized as single crystals and structurally and physically characterized. Sc-2(SeO3)(3).H2O crystallizes as a new structure type containing novel ScO7 pentagonal bipyramidal and ScO6+1 capped octahedral coordination polyhedra. Sc-2(SeO3)(3).3H(2)O contains typical ScO6 octahedra and is isostructural with its M-2(SeO3)(3).3H(2)O (M = Al, Cr, Fc, Ga) congeners. CsSc3(SeO3)(4)(HSeO3)(2).2H(2)O contains near-regular ScO6 octahedra and has essentially the same structure as its indium-containing analogue. All three phases contain the expected. pyramidal [SeO3](2-) selenite groups. Crystal data: Sc-2(SeO3)(3).3H(2)O, M-r = 524.85, trigonal, R3c (No. 161), a = 9.6481 (5) Angstrom, c = 20.7832(12) Angstrom, V = 1675.45(16) Angstrom(3), Z=6, R(F)=0.018, wR(F-2) = 0.036; Sc-2(SeO3)(3).H2O, M-r = 488.82, orthorhombic, P2(1)2(1)2(1) (No. 19), a = 6.5913 (6) Angstrom, b = 11.1596(11) Angstrom, c = 12.1368(11) Angstrom, V = 892.74(14) Angstrom(3), Z = 4, R(F) = 0.051, wR(F-2) = 0.086; CsSc3(SeO3)(4)(HSeO3)(2).2H(2)O, M-r = 1067.60, orthorhombic, Pnma (No. 62), a = 16.670 (3) Angstrom, b = 13.167(3) Angstrom, c = 9.575(2) Angstrom, V = 2101.6(7) Angstrom(3), Z = 4, R(F) = 0.035, wR(F-2) = 0.070. (C) 2004 Elsevier Inc. All rights reserved.

KW - hydrothermal synthesis

KW - crystal structure

KW - scandium selenium

U2 - 10.1016/j.jssc.2004.08.026

DO - 10.1016/j.jssc.2004.08.026

M3 - Article

VL - 177

SP - 4316

EP - 4324

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

SN - 0022-4596

IS - 11

ER -