10.1002/chem.201701813
Chemistry - A European Journal
FULL PAPER
(s, 4H), 7.61-7.55 (m, 8H), 7.47-7.32 (m, 24H), 7.24-7.14 (m,
8H), 1.10-0.80 (m, 84H); 13C NMR (125 MHz, CDCl3, ppm): δ =
141.57, 137.94, 136.41, 134.80, 134.51, 133.67, 133.20, 129.86,
129.45, 129.04, 128.88, 128.80, 127.17, 127.05, 119.23, 118.38,
104.07, 103.03, 46.71, 18.90, 18.86, 11.46; HRMS analysis
(ESI): calcd for C128H132S4Si4 (M+H)+, 1909.8362; found,
1909.8339 (error: -1.2 ppm). Note: During the crystal growing of
Ph-ADT-3-D, a trace amount of decomposed compound Ph-
ADT-3-O was also occasionally identified by X-ray
crystallographic analysis, however could not be isolated in a
pure compound.
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Acknowledgements
C. C. acknowledges financial support from the MOE Tier 1 grant
(R-143-000-623-112) and Tier 3 programme (MOE2014-T3-1-
004). We thank Dr. Bruno Donnadieu and Dr. Tan Geok Kheng
for the crystallographic analysis.
Keywords: acene • non-classical acene • heteroacene •
diradical character • quinoid
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