Crystal structure of inclusion compound
of porous lutetium(III) trans-thienothiophene-
2,5-dicarboxylate with trans-cinnamaldehyde
- Received: December, 3, 2024
- Revised: December, 3, 2024
- Accepted for publication: December, 3, 2024
- DOI 10.26902/JSC_id142615
- EDN: IOQYQA
- Views: 213
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
A new inclusion compound of cinnamic aldehyde (cin) based on porous lutetium(III) trans-thienothiophene-2,5-dicarboxylate (ttdc2–) metal-organic framework was characterized by means of single-crystal XRD, IR, CHN and TGA methods. The title crystal structure with the formula [Lu2(H2O)2(ttdc)3]·2DMF·cin (1cin) was derived from the parent MOF [Lu2(H2O)2(ttdc)3]·4DMF (1DMF) upon slow solid-to-liquid solvent exchange. Cinnamal
molecules, well-resolved within the structure of rigid coordination network,
are hydrogen-bonded to the H atom of coordinated water molecule. Close π⋯π-stacking contacts between the coplanar propene
fragments, capable for possible [2+2] cycloaddition reactions, and unusual for
cinnamal inclusion compounds, were found between the neighbor guest molecules
in the crystal structure.
Keywords: lutetium(III), metal-organic framework, MOF, crystal structure, inclusion compound, cinnamaldehyde
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