The robust {C(=O)OH···N(py)} heterosynthon persists in co-crystals formed between anthranilic acid and molecules with amide/pyridyl functionality
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Hadi Hadi Arman
Abstract
Co-crystals formed between anthranilic acid and each of N,N′-bis(pyridin-2-ylmethyl)oxalamide (1) and N,N′-bis(pyridin-3-ylmethyl)oxalamide (2) have been formed from solutions containing 2:1 stoichiometric quantities of the reagents. In isomeric 1 and 2, the oxaläamide groups have both amide and pyridyl groups capable for forming hydrogen bonding interactions with the äcomponents of anthranilic acid. However, it is the {C(=O)OH···N(py)} heterosynthon that persists in both crystal structures pointing to the robustness of this synthon when both carboxylic acids and pyridyl groups are found in co-crystals. In 1, amine-H···O (oxalamide) and amide-H···N(amine) hydrogen bonds lead to layers that stack along the c-axis via C—H···O (carbonyl) interactions. In 2, the amine-H···O(oxalamide) hydrogen bonds lead to layers which are connected into a three-dimensional architecture by amide-N—H···O2 (carbonyl) interactions.
© by Oldenbourg Wissenschaftsverlag, München, Germany
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Artikel in diesem Heft
- The two Bis(4-aminosalicylato-O) bis(N,N-dimethylethylenediamine)Ni(II) complexes
- Explanation for the stacking disorder in tris(bicyclo[2.1.1]hexeno)benzene using lattice-energy minimisations
- Crystal structure at 296 and 150 K, vibrational spectra and thermal behaviour of sarcosine sarcosinium nitrate
- The robust {C(=O)OH···N(py)} heterosynthon persists in co-crystals formed between anthranilic acid and molecules with amide/pyridyl functionality
- Mononuclear manganese(II) complexes of phenyl 2-pyridyl ketoxime – models for studies of Q-band EPR properties
- A study on AB2O6 compounds, Part II: the branches of the hcp family
- The 2.5- and 6-hydrates of dipotassium hydrogen arsenate, K2HAsO4: complex hydrogen bonding networks, one with an “ambiguous” order-disorder structure
- Crystal structure of the oxygen conducting compound Nd5Mo3O16
