Abstract
Based on space integration using a flow microreactor system, the title unsymmetrically substituted pyracenes with an extremely long C-C bond [1.714(2)1.739(4) Å] are readily accessible, whose structures demonstrate nonadditive substituent effects on expanding the polyarylated C 1C 2 bond in crystal. The bond lengths rather exhibit correlation with the eclipsing degree of the C sp 3C sp 3 bond, which is more affected by the intermolecular factors such as crystal packing.
Original language | English |
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Pages (from-to) | 541-543 |
Number of pages | 3 |
Journal | Chemistry Letters |
Volume | 41 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2012 |
ASJC Scopus subject areas
- Chemistry(all)