Synthesis, Crysta Structure, and Some Propertie of 4-Hydroxymethylpyridinium Hexafluorosilicate
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GELMBOLDT, Vladimir, SHYSHKIN, Ivan, FONARI, Marina, KRAVTSOV, Victor. Synthesis, Crysta Structure, and Some Propertie of 4-Hydroxymethylpyridinium Hexafluorosilicate. In: Journal of Structural Chemistry, 2019, nr. 7(60), pp. 1150-1155. ISSN 0022-4766. DOI: https://doi.org/10.1134/S0022476619070175
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Journal of Structural Chemistry
Numărul 7(60) / 2019 / ISSN 0022-4766

Synthesis, Crysta Structure, and Some Propertie of 4-Hydroxymethylpyridinium Hexafluorosilicate

DOI: https://doi.org/10.1134/S0022476619070175

Pag. 1150-1155

Gelmboldt Vladimir1, Shyshkin Ivan, Fonari Marina2, Kravtsov Victor2
 
1 Odessa National Medical University,
2 Institute of Applied Physics
 
Disponibil în IBN: 14 august 2019


Rezumat

Hexafluorosilicate with the composition (LH)2SiF6 (I), (L = 4-hydroxymethylpyridine) is isolated as the interaction product of an L methanol solution and 45% hydrofluorosilicic acid (L:H2SiF6 = 1:3). It the crystal structure of I the cations and anions are linked by NH···F (N···F of 2.809(2) Å,2.824(2) Å) and OH···F (O···F of 2.7036(18) Å) H bonds; the geometry of the SiF6 2− anion is a distorted octahedron (Si–F distances 1.6780(11)-1.6877(11) Å). In the IR spectrum of I the absorption bands of the main vibrations are identified; the solubility of I in water and some organic solvents and the degree of hydrolysis of the salt in a 1·10−4 M aqueous solution are determined.

Cuvinte-cheie
4-hydroxymethylpyridinium hexafluorosilicate, crystal structure, Hydrogen bonds, hydrolysis, Solubility