دورية أكاديمية
The structure of Pyrex® glass investigated by correlation NMR spectroscopy
| العنوان: | The structure of Pyrex® glass investigated by correlation NMR spectroscopy |
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| المؤلفون: | Tricot, G. |
| المساهمون: | Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 (LASIRE), Institut de Chimie - CNRS Chimie (INC-CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ISSN: 1463-9076. |
| بيانات النشر: | HAL CCSD Royal Society of Chemistry |
| سنة النشر: | 2016 |
| المجموعة: | LillOA (HAL Lille Open Archive, Université de Lille) |
| مصطلحات موضوعية: | [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry |
| الوصف: | The structure of the important technological glass Pyrex® was investigated by 1D- and 2D-correlation NMR techniques. Its local order was analysed in a first step by 1D 23 Na, 27 Al, 11 B and 29 Si MAS-NMR performed at 9.4 and 18.8 T. In a second step, its medium range order was documented using homo- and, for the first time, hetero-nuclear correlation NMR techniques: (i) the presence and the nature of BOB bonds were analysed using 2D 11 B DQ-SQ map; (ii) the silicate speciation was probed using 2D 29 Si/X (X = 11 B, 23 Na and 27 Al) D-HMQC maps and (iii) the 27 Al/ 11 B interaction was studied using TRAPDOR-NMR experiments. Altogether, the set of NMR data was used to extract accurate NMR parameters, to rule out the presence of diborate and danburite superstructural units and to provide an updated structural model based on B3 based groups attached to a T 4 network (T = Si, B, Al). |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-01388603; https://hal.science/hal-01388603Test |
| DOI: | 10.1039/C6CP02996E |
| الإتاحة: | https://doi.org/10.1039/C6CP02996ETest https://hal.science/hal-01388603Test |
| رقم الانضمام: | edsbas.B47077EB |
| قاعدة البيانات: | BASE |
| DOI: | 10.1039/C6CP02996E |
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