An unusual hybrid fluoride featuring a [V7F27](6-) chain motif based on a pyrochlore-like building unit

David W. Aldous; Alexandra M. Z. Slawin; Philip Lightfoot

doi:10.1016/j.jssc.2008.08.003

An unusual hybrid fluoride featuring a [V7F27](6-) chain motif based on a pyrochlore-like building unit

David W. Aldous, Alexandra M. Z. Slawin, Philip Lightfoot

Research output: Contribution to journal › Article › peer-review

Abstract

A new hybrid vanadium (III) fluoride [C4H12N2](3)[V7F27] has been synthesised solvothermally. The crystal structure (trigonal, R (3) over barc: a = 17.367(2) angstrom, c = 19.604(2) angstrom) reveals an unusual and novel chain motif consisting of pyrochlore-like heptameric units of corner-sharing octahedra, which are further linked into linear chains of alternating triple and single octahedral groups. The chains are separated by hydrogen-bonded piperazinium moieties. Magnetic susceptibility data show moderate antiferromagnetic interactions but no long-range order above 2 K, consistent with pronounced one-dimensional character, as well as frustration arising within the triangular units of magnetic ions in the chains. (C) 2008 Elsevier Inc. All rights reserved.

Original language	English
Pages (from-to)	3033-3036
Number of pages	4
Journal	Journal of Solid State Chemistry
Volume	181
Issue number	11
DOIs	https://doi.org/10.1016/j.jssc.2008.08.003
Publication status	Published - Nov 2008

Keywords

Vanadium fluoride
Solvothermal synthesis
Chain structure
Pyrochlore
CRYSTAL-STRUCTURE
VANADIUM OXYFLUORIDES
FRUSTRATED MAGNETS
CHEMISTRY
CSCRF4

Access to Document

10.1016/j.jssc.2008.08.003

Cite this

@article{17f72eb3b91b4cb986eb7ff36ef19968,

title = "An unusual hybrid fluoride featuring a [V7F27](6-) chain motif based on a pyrochlore-like building unit",

abstract = "A new hybrid vanadium (III) fluoride [C4H12N2](3)[V7F27] has been synthesised solvothermally. The crystal structure (trigonal, R (3) over barc: a = 17.367(2) angstrom, c = 19.604(2) angstrom) reveals an unusual and novel chain motif consisting of pyrochlore-like heptameric units of corner-sharing octahedra, which are further linked into linear chains of alternating triple and single octahedral groups. The chains are separated by hydrogen-bonded piperazinium moieties. Magnetic susceptibility data show moderate antiferromagnetic interactions but no long-range order above 2 K, consistent with pronounced one-dimensional character, as well as frustration arising within the triangular units of magnetic ions in the chains. (C) 2008 Elsevier Inc. All rights reserved.",

keywords = "Vanadium fluoride, Solvothermal synthesis, Chain structure, Pyrochlore, CRYSTAL-STRUCTURE, VANADIUM OXYFLUORIDES, FRUSTRATED MAGNETS, CHEMISTRY, CSCRF4",

author = "Aldous, {David W.} and Slawin, {Alexandra M. Z.} and Philip Lightfoot",

year = "2008",

month = nov,

doi = "10.1016/j.jssc.2008.08.003",

language = "English",

volume = "181",

pages = "3033--3036",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press/Elsevier ",

number = "11",

}

TY - JOUR

T1 - An unusual hybrid fluoride featuring a [V7F27](6-) chain motif based on a pyrochlore-like building unit

AU - Aldous, David W.

AU - Slawin, Alexandra M. Z.

AU - Lightfoot, Philip

PY - 2008/11

Y1 - 2008/11

N2 - A new hybrid vanadium (III) fluoride [C4H12N2](3)[V7F27] has been synthesised solvothermally. The crystal structure (trigonal, R (3) over barc: a = 17.367(2) angstrom, c = 19.604(2) angstrom) reveals an unusual and novel chain motif consisting of pyrochlore-like heptameric units of corner-sharing octahedra, which are further linked into linear chains of alternating triple and single octahedral groups. The chains are separated by hydrogen-bonded piperazinium moieties. Magnetic susceptibility data show moderate antiferromagnetic interactions but no long-range order above 2 K, consistent with pronounced one-dimensional character, as well as frustration arising within the triangular units of magnetic ions in the chains. (C) 2008 Elsevier Inc. All rights reserved.

AB - A new hybrid vanadium (III) fluoride [C4H12N2](3)[V7F27] has been synthesised solvothermally. The crystal structure (trigonal, R (3) over barc: a = 17.367(2) angstrom, c = 19.604(2) angstrom) reveals an unusual and novel chain motif consisting of pyrochlore-like heptameric units of corner-sharing octahedra, which are further linked into linear chains of alternating triple and single octahedral groups. The chains are separated by hydrogen-bonded piperazinium moieties. Magnetic susceptibility data show moderate antiferromagnetic interactions but no long-range order above 2 K, consistent with pronounced one-dimensional character, as well as frustration arising within the triangular units of magnetic ions in the chains. (C) 2008 Elsevier Inc. All rights reserved.

KW - Vanadium fluoride

KW - Solvothermal synthesis

KW - Chain structure

KW - Pyrochlore

KW - CRYSTAL-STRUCTURE

KW - VANADIUM OXYFLUORIDES

KW - FRUSTRATED MAGNETS

KW - CHEMISTRY

KW - CSCRF4

U2 - 10.1016/j.jssc.2008.08.003

DO - 10.1016/j.jssc.2008.08.003

M3 - Article

SN - 0022-4596

VL - 181

SP - 3033

EP - 3036

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 11

ER -

An unusual hybrid fluoride featuring a [V7F27](6-) chain motif based on a pyrochlore-like building unit

Abstract

Keywords

Access to Document

Fingerprint

Cite this