Butane-1,4-diammonium hexafluorosilicate

Abstract

The title compound, [NH3(CH2)4NH3]2+·SiF6 2−, is a hybrid built from an organic butane-1,4-di­ammonium dication linked to a hexa­fluoro­silicate mineral anion. Both ions posses inversion symmetry. In the anion the Si atom is located on an inversion center, while in the cation the center of inversion is situated at the mid-point of the central —CH2—CH2— bond. The Si atom is surrounded by six F atoms, forming a slightly distorted SiF6 2− octa­hedron. These octa­hedra are linked to the organic cations through N—H⋯F hydrogen bonds, forming a three-dimensional network.

Bis(2‐, 3‐, 4‐carboxyethylpyridinium) hexafluorosilicates as potential caries prophylactic agents

“…The Hirshfeld surface analysis [ 28,29 ] as a complemented tool to X‐ray investigation used for the quantitative assessment of intermolecular interactions occurring within the crystal lattice was implemented in some recent studies for relevant hybrid hexafluorosilicates. [ 30–32 ] Herein, for this purpose, the normalized contact distance ( d norm ) feature of the computed Hirshfeld surface, based on the internal ( d i ) and external ( d e ) distances, was employed. The corresponding 3D maps of the Hirshfeld surfaces, for I–III are shown in Figure 3a,c,e.…”

Hybrid crystal NH3(CH2)4NH3SiF6as an efficient catalyst for the synthesis of benzoxazoles, benzimidazoles and benzothiazoles under solvent-free conditions

“…The NH 3 (CH 2 ) 4 NH 3 SiF 6 crystal has been recently synthesized and characterized by X-ray diffraction (34). The crystal structure of this compound has been determined in the triclinic system with P 1 − (Z = 1) as space group and a = 5.796 (1) Å, b = 5.889 (1) Å, c = 7.774 (2) Å and α = 87.02 (1)°, β = 82.15 (1)°and γ = 61.87 (1)°, V = 231.79 (8) Å 3 as parameters of the crystal unit cell.…”

“…The three-dimensional plot of the NH 3 (CH 2 ) 4 NH 3 SiF 6 compound, showing inorganic sheets linked through N-H … .F hydrogen bonds to the organic layers (dashed lines)(34).…”