Abstract
The reaction between bis-ninhydrin resorcinol and benzyltrimethylammonium fluoride in ethanol has produced the title compound, 2C10H16N+·2C24H13O8 -·1.5H2O, which contains a unique centrosymmetric supramolecular dimeric entity, where two deprotonated ligands are held together via two strong and short [O⋯O = 2.4395(13)Å] [O-H-O]- bonds of the type negative charge-assisted hydrogen bonds (-CAHB). The central aromatic rings of the ligands create parallel-displaced π-π stacking at an interplanar distance of 3.381(1)Å, which helps stabilize the dimer. In the crystal, two symmetry-related solvent water molecules with a site occupancy of 0.75 are attached to the carbonyl groups of the dimer by weaker O-H⋯O hydrogen bonds, forming chains along [101].
Original language | English |
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Pages (from-to) | 399-402 |
Number of pages | 4 |
Journal | Acta Crystallographica Section E: Crystallographic Communications |
Volume | 72 |
DOIs | |
State | Published - 2016 |
Keywords
- crystal structure
- negative charge-assisted hydrogen bond [(-)CAHB]
- ninhydrin
- supramolecular dimer
- vasarene
All Science Journal Classification (ASJC) codes
- General Chemistry
- General Materials Science
- Condensed Matter Physics