| Autor: |
Wodajo, Ayalew T., Thi Thanh Van Tran, Hong Hieu Truong, Tskhovrebov, Alexander G., The Duan Le, Khrustalev, Victor N., Tuan Anh Le |
| Předmět: |
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| Zdroj: |
Acta Crystallographica Section E: Crystallographic Communications; Sep2020, Vol. 76 Issue 9, Preceding p1454-1457, 10p |
| Abstrakt: |
The title compound, C27H24N2O5, is a product of the deamination reaction from aza-14-crown-4 ether containing the γ-piperidone subunit. The title molecule contains a 16-membered macrocycle with the conformation of the C—O—C—C—O—C—C—O—C polyether chain being t–g(-)–t–t–g(+)–t (t = trans, 180°; g = gauche, ±60°). The dihedral angle between the planes of the benzene rings fused to the aza-14-crown-4-ether moiety is 31.11 (14)°. The cavity size inside the macrocycle is 4.72 Å. The macrocycle is significantly flattened as a result of the extended conjugated system. Steric repulsion between the pyridylcarboxamide fragment and the benzene ring results in a slight deviation of macrocycle from planarity. The structure also features intramolecular hydrogen bonding, which results in a deviation of the angle between the planes of amide and pyridyl groups from planarity: this angle is 16.32 (18)°. In the crystal, the molecules are linked into infinite zigzag chains via intermolecular C—Hπ contacts. The chains are bound into layers parallel to (100) by weak intermolecular C—HO hydrogen bonds. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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