کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7808015 | 1501658 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectroscopic characterization of rare hydrated ammonium borate mineral larderellite
ترجمه فارسی عنوان
خصوصیات اسپکتروسکوپی نادر هیدرادین آمونیوم بورات معدنی
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کلمات کلیدی
بورات آمونیوم هیدراته شده، لاردرلئیت، طیف سنجی مادون قرمز، طیف سنجی رامان، تجزیه و تحلیل حرارتی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Two samples of larderellite (NH4)B5O7(OH)2·H2O from Monte Rotonda (Italy) have been studied. Spectroscopic methods, like infrared and Raman spectroscopy, were used in combination with thermal analysis and X-ray diffraction. The main objective was vibrational characteristic of research mineral and, based on the obtained results, test how the long storage of minerals affect their structure. Raman and infrared spectroscopy confirm the presence of tetrahedral and trigonal boron structural units in the investigated samples. The most intensive Raman band is located at 149â¯cmâ1 and is assigned to lattice vibration. The most intensive infrared bands, located at 1209 and 1273â¯cmâ1, are ascribed as in-plane modes (δ) of BOH. Bands associated with water bending mode (ν2) and stretching vibration (ν1) are observed at 1668â¯cmâ1 (IR) and in the 3000-3500â¯cmâ1 region (both Raman and IR spectrum). Thermal analysis showed differences between two research samples of larderellite connected with presence of adsorption water, that can indicate influence of conditions of minerals storage on properties of mineral.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1159, 5 May 2018, Pages 226-232
Journal: Journal of Molecular Structure - Volume 1159, 5 May 2018, Pages 226-232
نویسندگان
Iwona Korybska-SadÅo, Maciej Sitarz, Magdalena Król, Wojciech Bartz, Marta Prell, Piotr Gunia,