@article {28605,
	title = {Pyrene-1,5,6,10-tetracarboxyl diimide: a new building block for high-performance electron-transporting polymers},
	journal = {J. Mater. Chem. C},
	volume = {9},
	number = {24},
	year = {2021},
	note = {[[{"fid":"9637","view_mode":"default","type":"media","attributes":{"height":"374","width":"1000","class":"media-element file-default"}}]]},
	pages = {7599-7606},
	publisher = {The Royal Society of Chemistry},
	type = {10.1039/D1TC01729B},
	abstract = {Both\&nbsp;naphthalene and perylene derivatives bearing six-membered-ring dicarboximide groups are proven valuable modules for preparing organic electron-transporting semiconductors. However, obtaining their analogue with pyrene appeared challenging, as all previous endeavors resulted in 5- instead of 6-membered dicarboximide rings. Here, we report the first successful synthesis of pyrene-1,5,6,10-tetracarboxyl diimide (PyDI), a centro-symmetric structure comprising two 6-membered dicarboximide groups. Moreover, this molecule undergoes regioselective dihalogenation to afford a 3,8-dibromo-substituted derivative, which may conveniently be incorporated into conjugated polymers via cross-coupling with suitable comonomers. Two representative conjugated polymers, PyDI-T and PyDI-TT, are thus prepared, composed of alternating PyDI and thiophene or bithiophene units. OFETs are then fabricated using these polymers under solution-processing conditions. An optimal electron mobility of 0.335 cm(2) V(-1) s(-1) is achieved by PyDI-TT, which clearly demonstrates the potential of 1,5,6,10-PyDI as a potent building block for developing new high-performance electronic-transporting materials.},
	isbn = {2050-7526},
	url = {https://doi.org/10.1039/d1tc01729b},
	author = {Li, Yao and Yao, Zefan and Xie, Jiajun and Han, Han and Yang, Guantao and Bai, Xudong and Pei, Jian* and <strong>Zhao, Dahui*</strong>}
}
