Amino acid hexafluorosilicates - an overview
- Autor(en)
- Michel Fleck, Vahram V. Ghazaryan, Aram M. Petrosyan
- Abstrakt
Single crystal data on eight new hexafluorosilicate salts of amino acids are presented in this work. This includes crystal and molecular structures of the following salts: 2 β-Ala · H2SiF6 (I), 2 Bet · H2SiF6 (II), 2L-Orn · H2SiF6 (III), 2L-Ser · H2SiF6 (IV), 2L-Leu · H2SiF6 · 2 H2O (V), 2L-Ile · H2SiF6 · 2 H2O (VI), 2L-Met · H2SiF6 · H2O (VII), and 2L-Asp · H2SiF6 · 2 H2O (VIII). In all these crystals, the SiF6-anion is ordered, except for (III), where disorder of the fluorine atoms occurs. An analysis of previously published data on amino acid hexafluorosilicates showed that the amount of hydrogen bonding towards the SiF6-anion is an indication of disorder - we found that all structures with 0.6 or less hydrogen bonds per fluorine atom have disorder.
- Organisation(en)
- Institut für Mineralogie und Kristallographie
- Externe Organisation(en)
- National Academy of Sciences of the Republic of Armenia
- Journal
- Zeitschrift für Kristallographie - Crystalline Materials
- Band
- 228
- Seiten
- 240-249
- Anzahl der Seiten
- 10
- ISSN
- 2194-4946
- DOI
- https://doi.org/10.1524/zkri.2013.1604
- Publikationsdatum
- 2013
- Peer-reviewed
- Ja
- ÖFOS 2012
- 105113 Kristallographie, 104015 Organische Chemie
- Schlagwörter
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/9d15d5de-b565-4567-9a9e-33a2604802be