In the title double proton-transfer salt, C 12 H 12 N 2 2+ ·2C 8 H 7 O 4 − , consisting of a 1:2 ratio of 4,4'-(ethene-1,2-diyl)dipyridinium cations ( trans bipyridinium ethylene) to 2-hydroxy-3-methoxybenzoate anions ( o -vanillate), the complete cation is generated by crystallographic inversion symmetry and it is linked to adjacent o -vanillate anions by N—H...O hydrogen bonds, forming trimolecular assemblies. The trimers are linked by C—H...O hydrogen bonds as well as aromatic π–π stacking interactions into a three-dimensional network. The anion features an intramolecular O—H...O hydrogen bond.
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2,2,3,3,4,4,5,5-Octafluorohexane-1,6-diol
In the crystal of the title compound, C 6 H 6 F 8 O 4 , O—H...O hydrogen bonds involving the hydroxy groups connect the molecules, forming a two-dimensional network parallel to (100). These hydrogen-bonding interactions appear to drive the O—C—C—O torsion angles into a gauche – trans – trans series of conformations along the backbone of the molecule.
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- Award ID(s):
- 1726630
- PAR ID:
- 10196260
- Date Published:
- Journal Name:
- IUCrData
- Volume:
- 5
- Issue:
- 4
- ISSN:
- 2414-3146
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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In the title compound, 3-[(2-acetamidophenyl)imino]butan-2-one, C 12 H 14 N 2 O 2 , the imine C=N bond is essentially coplanar with the ketone C=O bond in an s-trans conformation. The benzene ring is twisted away from the plane of the C=N bond by 53.03 (14)°. The acetamido unit is essentially coplanar with the benzene ring. In the crystal, molecules are connected into chains along the c axis through C—H...O hydrogen bonds, with two adjacent chains being hinged by C—H...O hydrogen bonds.more » « less
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