Journal
ORGANIC LETTERS
Volume 12, Issue 3, Pages 456-459Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol902613g
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Funding
- National Natural Science Foundation Of China [20972041, 50803015, 20672028, 20572015]
- [NCET-05-0610]
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Bis(trimethylsilyl)benzohexathia[7]helicene 1, naphthalene cored double helicene 2 (the fused dimer of 1), and a novel ten-membered cyclic diketone with four moieties of dithieno[2,3-b:3',2'-d]thiophene (3) were efficiently synthesized. Their crystal structures were determined with single-crystal X-ray analysis, In their crystal packings, they all show mutiple short contacts including intermolecular pi...pi, pi...S, and S...S interactions. UV/vis spectra indicate that significant T-electron delocalization existed in 1, 2, and 3.
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