Zobrazeno 1 - 10
of 134
pro vyhledávání: '"H. Ahsbahs"'
Publikováno v:
Journal of Solid State Chemistry. 180:1353-1364
We performed the single-crystal X-ray diffraction study of a perovskite-type gold mixed-valence compound, Cs 2 Au I Au III Cl 6 , under high pressures up to 18 GPa by using a diamond-anvil-cell with helium gas as an ideal hydrostatic pressure-transmi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e928d0ca0b1108ababba64fc28a7568b
https://doi.org/10.1016/j.jssc.2007.01.037
https://doi.org/10.1016/j.jssc.2007.01.037
Publikováno v:
Zeitschrift für Kristallographie. 222:23-29
Anin situX-ray powder diffraction study has shown the cubic modification of (NH4)2SiF6(cryptohalite, space groupFm¯3m) at 0.2–0.3 GPa to transform irreversibly into the trigonal bararite, space groupP¯3m1. The anisotropy of lattice strain in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16c8daa9dd8de66cc4fc5fa4b62a63f5
https://doi.org/10.1524/zkri.2007.222.1.23
https://doi.org/10.1524/zkri.2007.222.1.23
Publikováno v:
Siberian Journal of Physics. 2:30-35
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::056b658e80ac5b0a5b5207b744e6fc4e
https://doi.org/10.54238/1818-7994-2007-2-2-30-35
https://doi.org/10.54238/1818-7994-2007-2-2-30-35
Autor:
Elena V. Boldyreva, Heidrun Sowa, H. Ahsbahs, Yu. V. Seryotkin, T. N. Drebushchak, Vladimir Dmitriev, Vladimir V. Chernyshev
Publikováno v:
Chemical Physics Letters. 429:474-478
Pressure induces two isosymmetric reversible polymorphic transitions in l -serine related to a jumpwise change in the hydrogen bond networks and the conformation of the zwitter-ions. Single-crystal X-ray diffraction in situ allowed to find the struct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bee82e11eab5655b8e5d6934a4016c3
https://doi.org/10.1016/j.cplett.2006.08.092
https://doi.org/10.1016/j.cplett.2006.08.092
Autor:
H. Ahsbahs, Heidrun Sowa
Publikováno v:
Journal of Applied Crystallography. 39:169-175
A high-pressure cell for single-crystal investigations requires large opening angles. If it does not contain any beryllium but only two diamonds mounted on steel backing plates, normally only lower pressures can be attained without risk of disruption
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efe7cce3d15c2d1ffce53f12b2d2c0e5
https://doi.org/10.1107/s0021889805042457
https://doi.org/10.1107/s0021889805042457
Autor:
Vladimir V. Chernyshev, H. Ahsbahs, Svetlana N. Ivashevskaya, Elena V. Boldyreva, Artem R. Oganov
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 221:186-197
Effect of hydrostatic pressures up to 8 GPa on the crystals of Na2C2O4 (sp. gr. P21/c) was studied in situ in the diamond anvil cells a) in neon, b) in methanol-ethanol mixture by high-resolution X-ray powder diffraction (synchrotron radiation, λ =
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0284a776ec790f1f753c99b5fe7a206f
https://doi.org/10.1524/zkri.2006.221.3.186
https://doi.org/10.1524/zkri.2006.221.3.186
Autor:
T. N. Drebushchak, Yuri V. Seryotkin, Elena V. Boldyreva, E.N. Kolesnik, H. Ahsbahs, Heidrun Sowa
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 221:150-161
SummaryThe anisotropy of lattice strain in the crystals of DL-serine (P21/n) on cooling down to 100 K and with increasing hydrostatic pressure up to 8.6 GPa was studied by single-crystal X-ray diffraction. In contrast to L-serine undergoing pressure-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa9896a5c1b6f6c80ce299f55b81d578
https://doi.org/10.1524/zkri.2006.221.2.150
https://doi.org/10.1524/zkri.2006.221.2.150
Autor:
Valeri A. Drebushchak, Elena B. Burgina, Tatyana P. Shakhtshneider, T. N. Drebushchak, S.V. Goryainov, Heidrun Sowa, Elena V. Boldyreva, Evgeniya N. Kolesnik, Svetlana N. Ivashevskaya, H. Ahsbahs
Publikováno v:
ARKIVOC, Vol 2004, Iss 12, Pp 128-155 (2005)
Several examples of the comparative variable-temperature and variable-pressure studies of the small-molecule organic crystals are discussed. Selected systems represent the crystals with non- spherical flexible molecules / molecular fragments and with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0332bd56cfc9295f9c9d6444787ad7b6
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0005.c10
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0005.c10
Autor:
T. N. Drebushchak, Hans-Peter Weber, Elena V. Boldyreva, E.N. Kolesnik, Jon Ares Beukes, H. Ahsbahs
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 220:58-65
The anisotropy of lattice strain in the crystals of L-serine (P212121, at ambient conditions a = 5.615(1) Å, b = 8.589(2) Å, c = 9.346(2) Å) on cooling down to 100 K and with increasing hydrostatic pressure up to 4.4 GPa was compared with each oth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e813f2d7cc3fdb4c9cccb37eebd4a2fb
https://doi.org/10.1524/zkri.220.1.58.58893
https://doi.org/10.1524/zkri.220.1.58.58893
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 220:50-57
The results of a high-resolution powder diffraction study of the effect of high hydrostatic pressure up to 8 GPa on the pure γ-polymorph of glycine (P31) are discussed. A phase transition with a jumpwise change of cell volume and cell parameters was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d51f934abcc64b983e5c450cfa6057c5
https://doi.org/10.1524/zkri.220.1.50.58886
https://doi.org/10.1524/zkri.220.1.50.58886