Structural features of the KH2PO4: Cr single crystal

Autor:	L. F. Malakhova, N. G. Furmanova, A. I. Vilensky, Alexey E. Voloshin, V. I. Simonov, Elena B. Rudneva, M. S. Grigorieva
Rok vydání:	2009
Předmět:	Chemistry chemistry.chemical_element Infrared spectroscopy General Chemistry Condensed Matter Physics Crystal Chromium Crystallography Impurity Molecule Bound water General Materials Science Single crystal Pyramid (geometry)
Zdroj:	Crystallography Reports. 54:211-218
ISSN:	1562-689X 1063-7745
DOI:	10.1134/s1063774509020084
Popis:	The precision X-ray structural investigation of KH2PO4 (KDP) crystal samples from different growth sectors of a single crystal containing chromium impurities is performed. It is demonstrated that the structure of the sample from the prismatic growth sector is more perfect than the structure of the sample from the pyramidal growth sector. The impurity trapping can lead to the formation of at least four different types of structural defects on the face of the pyramid, whereas only two of them can be formed on the face of the prism. A comparison with the relevant data for the “pure” KDP crystal shows that the number of defects and their character are approximately identical for all samples. The analysis of the IR spectra indicates that nitrate ions are contained in the samples from both growth sectors. Moreover, structurally bound water molecules and OH groups are revealed in the sample from the prismatic sector.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::33ea3e0a33e25e659cff20b441f1e155 https://doi.org/10.1134/s1063774509020084 Zobrazit plný text záznamu Plný text ve formátu PDF