Synthesis, structure determination and magnetic behaviour of the first porous hybrid oxyfluorinated vanado(III)carboxylate: MIL-71 or V III2(OH2F2(O2C-C 6H4-CO2)·H2O

K. Barthelet; K. Adil; F. Millange; C. Serre; D. Riou; G. Férey

doi:10.1039/b306852h

Synthesis, structure determination and magnetic behaviour of the first porous hybrid oxyfluorinated vanado(III)carboxylate: MIL-71 or V ^III₂(OH₂F₂(O₂C-C ₆H₄-CO₂)·H₂O

K. Barthelet, K. Adil, F. Millange, C. Serre, D. Riou, G. Férey

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Abstract

A new type of three-dimensional vanadium(III) dicarboxylate, MIL-71 or V^III₂(OH)₂F₂(O₂C-C ₆H₄-CO₂)·H₂O, has been obtained under hydrothermal conditions from aqueous mixtures of vanadium, 1,4-benzenedicarboxylic acid, and HF. MIL-71 cal or V^IV₂O₂F₂(O₂C-C₆H ₄-CO₂) is obtained by calcination of the parent compound in air at 250°C. The three-dimensional structure of MIL-71 (S.G.: Cmmm; a = 21.4477(8) Å, b = 7.1449(2) Å, c = 3.8246(2) Å and Z = 2) consists of layers built from corner-sharing (V^IIIO ₂(OH)₂F₂) octahedra connected by the terephthalate linkers. The role of fluorine in this structure is understood by comparison with the already known hybrid vanado(III)carboxylates. The thermal behavior of the two solids has been investigated using TGA and X-ray thermodiffractometry. Finally, magnetic measurements performed on both MIL-71 and MIL-71 cal reveal a canted antiferromagnetic behavior with Néel temperatures below 20 K.

Original language	English (US)
Pages (from-to)	2208-2212
Number of pages	5
Journal	Journal of Materials Chemistry
Volume	13
Issue number	9
DOIs	https://doi.org/10.1039/b306852h
State	Published - Sep 1 2003
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Materials Chemistry

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@article{d8eb17f44b744805bbc3ea80f4f78f9e,

title = "Synthesis, structure determination and magnetic behaviour of the first porous hybrid oxyfluorinated vanado(III)carboxylate: MIL-71 or V III2(OH2F2(O2C-C 6H4-CO2)·H2O",

abstract = "A new type of three-dimensional vanadium(III) dicarboxylate, MIL-71 or VIII2(OH)2F2(O2C-C 6H4-CO2)·H2O, has been obtained under hydrothermal conditions from aqueous mixtures of vanadium, 1,4-benzenedicarboxylic acid, and HF. MIL-71 cal or VIV2O2F2(O2C-C6H 4-CO2) is obtained by calcination of the parent compound in air at 250°C. The three-dimensional structure of MIL-71 (S.G.: Cmmm; a = 21.4477(8) {\AA}, b = 7.1449(2) {\AA}, c = 3.8246(2) {\AA} and Z = 2) consists of layers built from corner-sharing (VIIIO 2(OH)2F2) octahedra connected by the terephthalate linkers. The role of fluorine in this structure is understood by comparison with the already known hybrid vanado(III)carboxylates. The thermal behavior of the two solids has been investigated using TGA and X-ray thermodiffractometry. Finally, magnetic measurements performed on both MIL-71 and MIL-71 cal reveal a canted antiferromagnetic behavior with N{\'e}el temperatures below 20 K.",

author = "K. Barthelet and K. Adil and F. Millange and C. Serre and D. Riou and G. F{\'e}rey",

year = "2003",

month = sep,

day = "1",

doi = "10.1039/b306852h",

language = "English (US)",

volume = "13",

pages = "2208--2212",

journal = "Journal of Materials Chemistry",

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TY - JOUR

T1 - Synthesis, structure determination and magnetic behaviour of the first porous hybrid oxyfluorinated vanado(III)carboxylate

T2 - MIL-71 or V III2(OH2F2(O2C-C 6H4-CO2)·H2O

AU - Barthelet, K.

AU - Adil, K.

AU - Millange, F.

AU - Serre, C.

AU - Riou, D.

AU - Férey, G.

PY - 2003/9/1

Y1 - 2003/9/1

N2 - A new type of three-dimensional vanadium(III) dicarboxylate, MIL-71 or VIII2(OH)2F2(O2C-C 6H4-CO2)·H2O, has been obtained under hydrothermal conditions from aqueous mixtures of vanadium, 1,4-benzenedicarboxylic acid, and HF. MIL-71 cal or VIV2O2F2(O2C-C6H 4-CO2) is obtained by calcination of the parent compound in air at 250°C. The three-dimensional structure of MIL-71 (S.G.: Cmmm; a = 21.4477(8) Å, b = 7.1449(2) Å, c = 3.8246(2) Å and Z = 2) consists of layers built from corner-sharing (VIIIO 2(OH)2F2) octahedra connected by the terephthalate linkers. The role of fluorine in this structure is understood by comparison with the already known hybrid vanado(III)carboxylates. The thermal behavior of the two solids has been investigated using TGA and X-ray thermodiffractometry. Finally, magnetic measurements performed on both MIL-71 and MIL-71 cal reveal a canted antiferromagnetic behavior with Néel temperatures below 20 K.

AB - A new type of three-dimensional vanadium(III) dicarboxylate, MIL-71 or VIII2(OH)2F2(O2C-C 6H4-CO2)·H2O, has been obtained under hydrothermal conditions from aqueous mixtures of vanadium, 1,4-benzenedicarboxylic acid, and HF. MIL-71 cal or VIV2O2F2(O2C-C6H 4-CO2) is obtained by calcination of the parent compound in air at 250°C. The three-dimensional structure of MIL-71 (S.G.: Cmmm; a = 21.4477(8) Å, b = 7.1449(2) Å, c = 3.8246(2) Å and Z = 2) consists of layers built from corner-sharing (VIIIO 2(OH)2F2) octahedra connected by the terephthalate linkers. The role of fluorine in this structure is understood by comparison with the already known hybrid vanado(III)carboxylates. The thermal behavior of the two solids has been investigated using TGA and X-ray thermodiffractometry. Finally, magnetic measurements performed on both MIL-71 and MIL-71 cal reveal a canted antiferromagnetic behavior with Néel temperatures below 20 K.

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Synthesis, structure determination and magnetic behaviour of the first porous hybrid oxyfluorinated vanado(III)carboxylate: MIL-71 or V ^III₂(OH₂F₂(O₂C-C ₆H₄-CO₂)·H₂O

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