N-H…O, C-H… O hydrogen-bonded supramolecular frameworks in 4-fluoroanilinium and dicyclohexylaminium picrate salts
| Autor: | Sivakumar Kandasamy, Saminathan Kolandaivelu, Jagan Rajamoni |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Hydrogen
010405 organic chemistry Hydrogen bond Picrate Supramolecular chemistry chemistry.chemical_element 010402 general chemistry Condensed Matter Physics 01 natural sciences 0104 chemical sciences Ion chemistry.chemical_compound Crystallography chemistry Nitro Molecule Physical and Theoretical Chemistry |
| Zdroj: | Structural Chemistry. 31:899-908 |
| ISSN: | 1572-9001 1040-0400 |
| DOI: | 10.1007/s11224-019-01471-1 |
| Popis: | The asymmetric unit of compound (I), 4-fluoroanilinium picrate, C6H7NF+.C6H2N3O7− contain one 4-fluoroanilinium cation and one picrate anion whereas in compound (II), dicyclohexylaminium picrate, C12H22N+.C6H2N3O7− the asymmetric unit contains two sets of dicyclohexylaminium cation and picrate anion due to conformational difference between the molecules. In (I), all three nitro groups of the picrate anion are positionally disordered over two sites refined to major and minor components. The molecular ions of (I), interlinked through N–H‧‧‧O and C–H‧‧‧O hydrogen bonds forming two-dimensional supramolecular sheet along (-1 0 1) plane. Whereas in (II), the symmetry-independent molecules labeled as A and B molecule form independent one-dimensional supramolecular tape extending along (1 1 0) and (1 0 0) direction. The supramolecular tapes are interlinked through C–H‧‧‧O interaction to form three-dimensional network in the crystalline solid in (II). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink