Abstract
The asymmetric unit of the title salt adduct, C6H13N2O+·C8H5O4 −·C8H6O4, comprises one isonipecotamide cation, a hydrogen phthalate anion and a phthalic acid adduct molecule. These form a two-dimensional hydrogen-bonded network through head-to-tail cation–anion–adduct molecule interactions which include a cyclic heteromolecular amide–carboxylate motif [graph set R 2 2(8)], conjoint cyclic R 2 2(6) and R 3 3(10) piperidinium N—H⋯Ocarboxyl associations, as well as strong carboxyl O—H⋯Ocarboxyl hydrogen bonds.
Highlights
The asymmetric unit of the title salt adduct, C6H13N2O+C8H5O4C8H6O4, comprises one isonipecotamide cation, a hydrogen phthalate anion and a phthalic acid adduct molecule
In the hydrogen phthalate anion (B) and the phthalic acid adduct molecule (A), the carboxyl substituent groups are rotated by differing degrees out of the planes of the benzene rings [torsion angles C1—C2—C21—O22 and C2—C1—
Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) x, y, z−1; (iii) −x+1, −y+1, −z+1; (iv) x, y, z+1; (v) −x+1, −y+2, −z+1
Summary
H atoms treated by a mixture of independent and constrained refinement max = 0.25 e Å3. Min = 0.22 e Å3 a Faculty of Science and Technology, Queensland University of Technology, GPO. Box 2434, Brisbane, Queensland 4001, Australia, and bSchool of Biomolecular and Physical Sciences, Griffith University, Nathan, Queensland 4111, Australia. The asymmetric unit of the title salt adduct, C6H13N2O+C8H5O4C8H6O4, comprises one isonipecotamide cation, a hydrogen phthalate anion and a phthalic acid adduct molecule. These form a two-dimensional hydrogen-bonded network through head-to-tail cation–anion–adduct molecule interactions which include a cyclic heteromolecular amide–. R33(10) piperidinium N—H Ocarboxyl associations, as well as strong carboxyl O—H Ocarboxyl hydrogen bonds
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