| Инд. авторы: | Korzhneva K.E, Kidyarov B.I., Isaenko L.I., Zherebtsov D.A., Sharutin V.V., Yelisseyev A.P., Pervukhina N.V, Tarasova A.Y. |
| Заглавие: | Growth, structure and physical properties of nonlinear K2Ba(NO3)(4) crystals |
| Библ. ссылка: | Korzhneva K.E, Kidyarov B.I., Isaenko L.I., Zherebtsov D.A., Sharutin V.V., Yelisseyev A.P., Pervukhina N.V, Tarasova A.Y. Growth, structure and physical properties of nonlinear K2Ba(NO3)(4) crystals // Journal of Solid State Chemistry. - 2019. - Vol.274. - P.52-57. - ISSN 0022-4596. - EISSN 1095-726X. |
| Внешние системы: | SCOPUS: 2-s2.0-85062996924; DOI: 10.1016/j.jssc.2019.01.037; WoS: 000467663700008; РИНЦ: 38704677; |
| Реферат: | eng: Transparent crystals of K2Ba(NO3)(4) were obtained from water solution. The phase diagram of the Ba(NO3)(2)-KNO3-H2O system was constructed on the basis of experimental data, using X-ray phase analysis. For the first time the crystal structure of K2Ba(NO3)(4) was determined as tetragonal (I-42m) with unit cell parameters a = b = 8,3126(7) angstrom, c = 7,7711(6) angstrom, V = 536,988 angstrom(3). It was found that K2Ba(NO3)(4) is irreversibly decomposed into KNO3 and Ba(NO3)(2) with decomposition temperature 197.3 degrees C. K2Ba(NO3)(4) crystal is transparent in the range of 0.25-2.2 mu m, where an absorption peak with the maximum at 0.3 mu m is observed. The band gap is about 5 eV.
|
| Ключевые слова: | Light transmission; Potash; Potassium Nitrate; Thermoanalysis; Absorption peaks; Decomposition temperature; Non-centrosymmetric; Optical transmission spectrum; Structure and physical properties; Transparent crystals; Unit cell parameters; X-ray phase analysis; Crystal structure; Crystal structure; Non-centrosymmetric K 2 Ba(NO 3 ) 4 crystals; Optical transmission spectra; Thermal analyses; Barium compounds; Energy gap; Chromium compounds; |
| Издано: | 2019 |
| Физ. характеристика: | с.52-57 |