The six-coordinate Sn atom in bis , exists in a cis±C 2 SnO 4 coordination sphere [SnÐC 2.127 (5) A Ê ; CÐSnÐC 109.2 (3) ]. The anion lies on a special position of 2 symmetry. The ammonium cations and the stannate anions are linked by hydrogen bonds into a linear chain.
Bis(diisopropylammonium) sulfate
✍ Scribed by Reiß, Guido J. ;Engel, Judith S.
- Publisher
- International Union of Crystallography
- Year
- 2004
- Tongue
- English
- Weight
- 338 KB
- Volume
- 60
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
Bis(diisopropylammonium) sulfate, 2C 6 H 16 N + ÁSO 4 2À , crystallizes in the monoclinic centrosymmetric space group P2 1 /n. The asymmetric unit contains two crystallographically independent diisopropylammonium cations and one sulfate anion in general positions. Strong hydrogen bonding occurs between the cations and anions, forming layers parallel to (101). Each layer is composed of ring systems that can be classi®ed according to Etter's nomenclature as R 4 4 (12) and R 12 12 (36). IR and Raman spectroscopy con®rm the presence of a nearly undistorted sulfate anion.
📜 SIMILAR VOLUMES
The six-coordinate Sn atom in bis(diisopropylammonium) diphenyldioxalatostannate(IV), , exists in a cis-C 2 SnO 4 octahedral coordination sphere [SnÐC 2.139 (7) and 2.144 (7) A Ê ; CÐSnÐC 103.8 (3) ]. The ammonium cations and the stannate anions are linked by hydrogen bonds into a zigzag chain, run
The title compound, C 14 H 24 N + ÁI À , was formed by a Schiff base condensation of 2,6-diisopropylaniline and acetone, using GaI as a Lewis acid. A strong interaction from the iminium hydrogen NÐH to the iodide counter-ion is observed. The 1 H and 13 C NMR data are also reported.
The cations and anions of the title compound, 2C~7~H~10~N^+^·SO~4~ ^2−^, are linked into a layer by N—H...O hydrogen bonds.
Single-crystal and powder X-ray study T = 293 K Mean '(C±C) = 0.004 A Ê Disorder in solvent or counterion R factor = 0.043 wR factor = 0.100 Data-to-parameter ratio = 15.2 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.