Evolution of guanazolium fluoroaluminates within the composition-space diagram and with the temperature
| hal.structure.identifier | Laboratoire des oxydes et fluorures [LdOF ] | |
| dc.contributor.author | CADIAU, Amandine | |
| hal.structure.identifier | Laboratoire des oxydes et fluorures [LdOF ] | |
| dc.contributor.author | LE BAIL, Armel | |
| hal.structure.identifier | Laboratoire des oxydes et fluorures [LdOF ] | |
| hal.structure.identifier | Institut des Molécules et Matériaux du Mans [IMMM] | |
| dc.contributor.author | HÉMON-RIBAUD, Annie | |
| hal.structure.identifier | Laboratoire des oxydes et fluorures [LdOF ] | |
| hal.structure.identifier | Institut des Molécules et Matériaux du Mans [IMMM] | |
| dc.contributor.author | LEBLANC, Marc | |
| hal.structure.identifier | Laboratoire de physique de l'état condensé [LPEC] | |
| hal.structure.identifier | Institut des Molécules et Matériaux du Mans [IMMM] | |
| dc.contributor.author | BODY, Monique | |
| hal.structure.identifier | Conditions Extrêmes et Matériaux : Haute Température et Irradiation [CEMHTI] | |
| dc.contributor.author | FAYON, Franck | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DURAND, Etienne | |
| hal.structure.identifier | Bruker Optics Sarl | |
| dc.contributor.author | BOULOU, Jean-Claude | |
| hal.structure.identifier | Laboratoire des oxydes et fluorures [LdOF ] | |
| hal.structure.identifier | Institut des Molécules et Matériaux du Mans [IMMM] | |
| dc.contributor.author | MAISONNEUVE, Vincent | |
| dc.date.issued | 2010 | |
| dc.identifier.issn | 1528-7483 | |
| dc.description.abstractEn | The 2D composition-space diagram of the Al(OH)<sub>3</sub>−<i>Am</i><sub><i>2</i></sub><i>TAZ</i>−HF<sub>aq</sub>−ethanol system is established under microwave heating at 190 °C for [Al<sup>3+</sup>] = 1 mol·L<sup>−1</sup>. Four new fluoroaluminates are evidenced when the [HF]/[<i>Am</i><sub><i>2</i></sub><i>TAZ</i>] ratio is increased in the starting solution, and the dimensionality of the inorganic frameworks is increased from 0D in [H<i>Am</i><sub><i>2</i></sub><i>TAZ</i>]<sub>2</sub>·(AlF<sub>5</sub>(H<sub>2</sub>O))·2H<sub>2</sub>O (<i>Pc</i>, <i>Z</i> = 2), to 1D in [H<i>Am</i><sub><i>2</i></sub><i>TAZ</i>]<sub>2</sub>·(AlF<sub>5</sub>) and [H<i>Am</i><sub><i>2</i></sub><i>TAZ</i>]<sub>2</sub>·(Al<sub>2</sub>F<sub>8</sub>) (<i>Fdd</i>2, <i>Z</i> = 8), and to 2D in [H<i>Am</i><sub><i>2</i></sub><i>TAZ</i>]<sub>2</sub>·(Al<sub>5</sub>F<sub>17</sub>) (<i>Imm</i>2, <i>Z</i> = 2). This evolution is partially paralleled by the thermal decomposition of [H<i>Am</i><sub><i>2</i></sub><i>TAZ</i>]<sub>2</sub>·(AlF<sub>5</sub>(H<sub>2</sub>O))·2H<sub>2</sub>O; on heating, this hydrate gives [H<i>Am</i><sub><i>2</i></sub><i>TAZ</i>]<sub>2</sub>·(AlF<sub>5</sub>) at 100−150 °C and [H<i>Am</i><sub><i>2</i></sub><i>TAZ</i>]<sub>2</sub>·(Al<sub>2</sub>F<sub>8</sub>) at 180 °C; the loss and simultaneous decomposition of [H<i>Am</i><sub><i>2</i></sub><i>TAZ</i>]F leave a solid residue of polymeric paracyanogen (CN)<sub>2<i>n</i></sub> that is further decomposed and hydrolyzed into HCN and HNCO by atmospheric water traces. NMR <sup>19</sup>F spectroscopy of [H<i>Am</i><sub><i>2</i></sub><i>TAZ</i>]<sub>2</sub>·(AlF<sub>5</sub>) is in agreement with the crystallographic determination, and the <sup>27</sup>Al spectrum demonstrates that a significant F<sup>−</sup>/OH<sup>−</sup> substitution is excluded. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.title.en | Evolution of guanazolium fluoroaluminates within the composition-space diagram and with the temperature | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/cg100909x | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Crystal Growth & Design | |
| bordeaux.page | 5159-5168 | |
| bordeaux.volume | 10 | |
| bordeaux.issue | 12 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00549296 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00549296v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Crystal%20Growth%20&%20Design&rft.date=2010&rft.volume=10&rft.issue=12&rft.spage=5159-5168&rft.epage=5159-5168&rft.eissn=1528-7483&rft.issn=1528-7483&rft.au=CADIAU,%20Amandine&LE%20BAIL,%20Armel&H%C3%89MON-RIBAUD,%20Annie&LEBLANC,%20Marc&BODY,%20Monique&rft.genre=article |
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