Abstract
Guanidinium hexafluoroaluminate (C(NH2)3)3AlF6 crystallizes in a cubic system in the space group P21/a3,a=13.953(2) AA, Z=8. The guanidinium cation does not exhibit any symmetry; the hexafluoroaluminate anion has 3 symmetry and occupies two inequivalent (4a) and (4b) positions. The ions are connected by relatively strong N-H...F hydrogen bonds. Proton and fluorine spin-lattice relaxation times as well as second moments have been measured over a wide range of temperatures. The analysis of all cross-relaxation effects for the system of four unlike spins has been performed. Activation parameters for the C3 reorientation of the cation and for the NH2 group motion have been derived. Unlike in other guanidinium salts, anion reorientation is hindered by a much higher energy barrier than cation reorientation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
