✍ Scribed by Prukała, Wiesław ;Marciniec, Bogdan ;Kubicki, Maciej
No coin nor oath required. For personal study only.
The crystal structure of tetra-n-butylammonium iodide, C~16~H~36~N^+^·I^−^, has been redetermined at room temperature and at 100 (1) K. In the low-quality (R = 0.142) room-temperature determination by Wang, Habenschuss, Xenopoulos & Wunderlich [Mol. Cryst. Liq. Cryst. Sci. Technol. Sect. A (1995), 264, 115–129], this structure was described as crystallizing in the space group __C__2 with Z′ = 2. Our results prove that the correct space group is __C__2/c (with the same unit-cell parameters as in the original determination) at both temperatures. In the crystal structure, the iodide anions fill the voids in the grid-like cationic structure. Weak C—H...I interactions (eight per anion) strengthen this packing.
📜 SIMILAR VOLUMES
Dielectric constant and loss of aqueous solutions of tetra-n-butyl ammonium polyacrylate ((Bu)~NPA) were measured in the frequency range from 300 Hz to 6 MHz as compared with sodium and other salts a t various conditions. Our results show that there are two dispersions observed in the low-frequency