NdHO, a novel oxyhydride

Marius Widerøe; Helmer Fjellvåg; Truls Norby; Finn Willy Poulsen; Rolf W. Berg

doi:10.1016/j.jssc.2011.05.025

NdHO, a novel oxyhydride

Marius Widerøe, Helmer Fjellvåg, Truls Norby, Finn Willy Poulsen, Rolf W. Berg

Department of Chemistry

University of Oslo

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

A new metal oxyhydride; neodymium oxyhydride, NdHO, has been synthesized from a reactant mixture of metal hydride (CaH2 or NdH3) and neodymium oxide(Nd2O3). The unit cell dimensions decrease smoothly in the series from LaHO, CeHO, PrHO to NdHO, in line with the lanthanide contraction. The crystal structure of NdHO is described on the basis of Rietveld refinement on neutron powder diffraction data: Space group: P4/nmm (no. 129,D4h 7 ). Axis lengths: a¼7.8480(5) A˚,c¼5.5601(8) A˚. Volume: V¼342.46(6) ˚A3. The tetragonal structure is derived from the fluorite structure, showing complete ordering of hydride and oxide ions over the anion sublattice. The formation of NdHO was further substantiated by Raman spectroscopy.

Original language	English
Journal	Journal of Solid State Chemistry
Volume	184
Pages (from-to)	1890-1894
ISSN	0022-4596
DOIs	https://doi.org/10.1016/j.jssc.2011.05.025
Publication status	Published - 2011

Keywords

Neodymium oxyhydride
Crystal structure
Chemical compound:NdHO

Access to Document

10.1016/j.jssc.2011.05.025

OpenUrl availability

Full text

Cite this

@article{e1f4f1f62b5c446aa24a1fec518a22c1,

title = "NdHO, a novel oxyhydride",

abstract = "A new metal oxyhydride; neodymium oxyhydride, NdHO, has been synthesized from a reactant mixture of metal hydride (CaH2 or NdH3) and neodymium oxide(Nd2O3). The unit cell dimensions decrease smoothly in the series from LaHO, CeHO, PrHO to NdHO, in line with the lanthanide contraction. The crystal structure of NdHO is described on the basis of Rietveld refinement on neutron powder diffraction data: Space group: P4/nmm (no. 129,D4h 7 ). Axis lengths: a¼7.8480(5) A˚,c¼5.5601(8) A˚. Volume: V¼342.46(6) ˚A3. The tetragonal structure is derived from the fluorite structure, showing complete ordering of hydride and oxide ions over the anion sublattice. The formation of NdHO was further substantiated by Raman spectroscopy.",

keywords = "Neodymium oxyhydride, Crystal structure, Chemical compound:NdHO",

author = "Marius Wider{\o}e and Helmer Fjellv{\aa}g and Truls Norby and Poulsen, {Finn Willy} and Berg, {Rolf W.}",

year = "2011",

doi = "10.1016/j.jssc.2011.05.025",

language = "English",

volume = "184",

pages = "1890--1894",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press",

}

TY - JOUR

T1 - NdHO, a novel oxyhydride

AU - Widerøe, Marius

AU - Fjellvåg, Helmer

AU - Norby, Truls

AU - Poulsen, Finn Willy

AU - Berg, Rolf W.

PY - 2011

Y1 - 2011

N2 - A new metal oxyhydride; neodymium oxyhydride, NdHO, has been synthesized from a reactant mixture of metal hydride (CaH2 or NdH3) and neodymium oxide(Nd2O3). The unit cell dimensions decrease smoothly in the series from LaHO, CeHO, PrHO to NdHO, in line with the lanthanide contraction. The crystal structure of NdHO is described on the basis of Rietveld refinement on neutron powder diffraction data: Space group: P4/nmm (no. 129,D4h 7 ). Axis lengths: a¼7.8480(5) A˚,c¼5.5601(8) A˚. Volume: V¼342.46(6) ˚A3. The tetragonal structure is derived from the fluorite structure, showing complete ordering of hydride and oxide ions over the anion sublattice. The formation of NdHO was further substantiated by Raman spectroscopy.

AB - A new metal oxyhydride; neodymium oxyhydride, NdHO, has been synthesized from a reactant mixture of metal hydride (CaH2 or NdH3) and neodymium oxide(Nd2O3). The unit cell dimensions decrease smoothly in the series from LaHO, CeHO, PrHO to NdHO, in line with the lanthanide contraction. The crystal structure of NdHO is described on the basis of Rietveld refinement on neutron powder diffraction data: Space group: P4/nmm (no. 129,D4h 7 ). Axis lengths: a¼7.8480(5) A˚,c¼5.5601(8) A˚. Volume: V¼342.46(6) ˚A3. The tetragonal structure is derived from the fluorite structure, showing complete ordering of hydride and oxide ions over the anion sublattice. The formation of NdHO was further substantiated by Raman spectroscopy.

KW - Neodymium oxyhydride

KW - Crystal structure

KW - Chemical compound:NdHO

U2 - 10.1016/j.jssc.2011.05.025

DO - 10.1016/j.jssc.2011.05.025

M3 - Journal article

SN - 0022-4596

VL - 184

SP - 1890

EP - 1894

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -

NdHO, a novel oxyhydride

Abstract

Keywords

Access to Document

OpenUrl availability

Fingerprint

Cite this