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A Liquid-Crystalline Phenylene-Based Shape-Persistent Molecular Spoked Wheel
- Source :
- Journal of the American Chemical Society. 139:4429-4434
- Publication Year :
- 2017
- Publisher :
- American Chemical Society (ACS), 2017.
-
Abstract
- Molecular spoked wheels with an all-phenylene backbone and different alkoxy side chain substitution patterns were synthesized using a cobalt-catalyzed [2 + 2 + 2] cycloaddition and subsequent template-directed cyclization via Yamamoto coupling. The two-dimensional organization of the molecules at the solid/liquid interface was investigated by means of scanning tunneling microscopy, allowing imaging of the molecular structure with submolecular resolution. With the right proportion of the flexible alkyl corona to the rigid core, mesomorphic behavior of one compound could be observed over a wide temperature range.
- Subjects :
- chemistry.chemical_classification
010405 organic chemistry
Chemistry
Stereochemistry
General Chemistry
Atmospheric temperature range
010402 general chemistry
01 natural sciences
Biochemistry
Catalysis
Cycloaddition
0104 chemical sciences
law.invention
Crystallography
Colloid and Surface Chemistry
law
Phenylene
Alkoxy group
Side chain
Molecule
Scanning tunneling microscope
Alkyl
Subjects
Details
- ISSN :
- 15205126 and 00027863
- Volume :
- 139
- Database :
- OpenAIRE
- Journal :
- Journal of the American Chemical Society
- Accession number :
- edsair.doi.dedup.....2c5470bd373e0040d05b0268401f179b