eprintid: 1449266
rev_number: 29
eprint_status: archive
userid: 608
dir: disk0/01/44/92/66
datestamp: 2014-09-26 18:34:21
lastmod: 2021-10-21 23:18:09
status_changed: 2014-09-26 18:34:21
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Fortes, AD
creators_name: Gutmann, MJ
title: Crystal structure of magnesium selenate heptahydrate, MgSeO7HO, from neutron time-of-flight data
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F57
note: This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
abstract: MgSeO7HO is isostructural with the analogous sulfate, MgSO7HO, consisting of isolated [Mg(HO)]octahedra and [SeO]tetrahedra, linked by O - O hydrogen bonds, with a single interstitial lattice water molecule. As in the sulfate, the [Mg(HO)]coordination octahedron is elongated along one axis due to the tetrahedral coordination of the two apical water molecules; these have Mg - O distances of ∼2.10 Å, whereas the remaining four trigonally coordinated water molecules have Mg - O distances of ∼2.05 Å. The mean Se - O bond length is 1.641 Å and is in excellent agreement with other selenates. The unit-cell volume of MgSeO7HO at 10 K is 4.1% larger than that of the sulfate at 2 K, although this is not uniform; the greater part of the expansion is along the a axis of the crystal.
date: 2014-08-06
official_url: http://dx.doi.org/10.1107/S1600536814018698
vfaculties: VMPS
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_source: Scopus
elements_id: 978875
doi: 10.1107/S1600536814018698
lyricists_name: Fortes, Andrew
lyricists_id: AFORT20
full_text_status: public
publication: Acta Crystallographica Section E: Structure Reports Online
volume: 70
number: 9
pagerange: 134 - 137
citation:        Fortes, AD;    Gutmann, MJ;      (2014)    Crystal structure of magnesium selenate heptahydrate, MgSeO7HO, from neutron time-of-flight data.                   Acta Crystallographica Section E: Structure Reports Online , 70  (9)   134 - 137.    10.1107/S1600536814018698 <https://doi.org/10.1107/S1600536814018698>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1449266/1/wm5046.pdf