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5 H. Usta, A. Facchetti, T. Marks, J. Am. Chem. Soc. 2008, 130,
8580–8581.
chloroform and filtered through a 0.22 lm Nylon 6 filter to
remove the insoluble impurities. Removal of the solvent
afforded a black solid (406 mg, 91%). 1H NMR (400 MHz,
CDCl3): d (ppm) 8.8 (br, 2H), 8.4 (br, 4H), 7.4 (br, 2H), 7.1 (br,
4H), 4.4-4.1 (br, 6H), 2.0 (br, 4H), 1.3 (br, 98H), 0.8 (br, 15H).
Mw, 1.6 ꢁ 104; Mw/Mn, 1.7. Anal. Calcd for C108H135N3O4S8: C,
72.23; H, 7.58; N, 2.34. Found: C, 71.20; H, 7.51; N, 2.17%.
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ACKNOWLEDGMENTS
This material is based upon work supported in part by the
NSFC (Grants 21025418, 50873107, 21021091), 973 Project
(Grant 2011CB808401), the Chinese Academy of Sciences, and
Solvay S. A.
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