| Autor: |
Gaydamaka AA; V. S. Sobolev Institute of Geology and Mineralogy SB RAS, Koptyug Avenue 3, Novosibirsk 630090, Russian Federation., Rashchenko SV; V. S. Sobolev Institute of Geology and Mineralogy SB RAS, Koptyug Avenue 3, Novosibirsk 630090, Russian Federation. |
| Jazyk: |
angličtina |
| Zdroj: |
Acta crystallographica Section B, Structural science, crystal engineering and materials [Acta Crystallogr B Struct Sci Cryst Eng Mater] 2024 Dec 01. Date of Electronic Publication: 2024 Dec 01. |
| DOI: |
10.1107/S2052520624008710 |
| Abstrakt: |
The crystal structure of the incommensurate modulated phase of potassium guaninate monohydrate has been solved on the basis of high-pressure single-crystal X-ray diffraction data. The modulated structure was described as a `mosaic' sequence of three different local configurations of two neighbouring guaninate rings. In contrast to known examples of incommensurate modulated organic compounds, the modulation functions of all atoms are discontinuous. This is the first example of the experimental detection of an incommensurate modulated crystal structure that can be modelled using the special `soliton mode' modulation function proposed by Aramburu et al. [(1995), J. Phys. Condens. Matter, 7, 6187-6196]. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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