ArticleOrganic letters2025
Substantial Effects of Ring Size on the Structure and Properties of 2,9-Anthrylene Cyclic Oligomers.
Article in Organic letters, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
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Abstract
Cyclic oligomers consisting of unsymmetrical anthracene units were designed as novel aromatic compounds. The Suzuki-Miyaura coupling of a 2-boryl-9-bromoanthracene precursor afforded the cyclic trimer and tetramer. X-ray crystallographic analysis revealed that the trimer took a highly strained propeller-like structure with short H···H contacts. In contrast, the tetramer took a saddle-shaped structure with minimal strain. Effects of ring size on UV-vis and fluorescence spectra and dynamic behavior are discussed in relation to the molecular structures.
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