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The evidence of hydrated proton in eudialyte-group minerals based on Raman spectroscopy dataстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Chukanov Nikita V., Vigasina Marina F., Rastsvetaeva Ramiza K., Aksenov Sergey M., Mikhailova Julia A., Pekov Igor V.
- Журнал: Journal of Raman Spectroscopy
- Год издания: 2022
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- DOI: 10.1002/jrs.6343
- Аннотация: Hydronium (oxonium) cation H3O+ plays an important role in mineralogy and mineral structures. However, it is rather difficult to detect it using conventional methods of crystal structure analysis. In particular, hydronium-bearing eudialyte-group minerals (EGMs) are well known. In this paper, we provide data on a low-temperature X-ray structure analysis and vibrationl spectroscopy study of previously described “potassium-oxonium eudialyte” from the Khibiny alkaline massif (Kola Peninsula, Russia) as well as new data on vibrational spectra and hydrogen bonding of a series of sodium-deficient hydrated EGMs including new samples and minerals whose crystal structures were investigated earlier. Based on single-crystal X-ray structural analysis and Raman spectroscopy, it is shown that natural sodium-deficient hydrated zirconosilicates related to eudialyte contain different hydrated proton complexes with extremely strong hydrogen bonds. The data obtained have been compared with recent high-level quantum electronic and vibrational calculations. Some hydrated proton complexes in hydrated eudialyte-related minerals have Zundel- and Eigen-type configurations with the O˙˙˙O distances of ~2.40 and ~2.55 Å, respectively.
- Добавил в систему: Алдошин Сергей Михайлович