New pyrrolo[3,2-b]pyrrole derivatives with multiple-acceptor substitution: Efficient fluorescent emission and near-infrared two-photon absorption

作者：Liu, Huan; Ye, Jun^*; Zhou, Yu; Fu, Lulu; Lu, Qinghua; Zhang, Chi^*

来源：Tetrahedron Letters, 2017, 58(52): 4841-4844.

DOI：10.1016/j.tetlet.2017.11.028

• Donor-pi-acceptor
• Pyrrolo[3,2-b]pyrrole
• Fluorescence
• Two-photon absorption

Two new D-rc-A organic chromophores, 1,2,4,5-tetra(4-cyanophenyl)pyrrolo[3,2-b]pyrrole (4CNPP) and 1,2,3,4,5,6-hexa(4-cyanophenyl)pyrrolo[3,2-b]pyrrole (6CNPP), were developed by modifying the electron -rich pyrrolo[3,2-b]pyrrole (PP) unit with four and six 4-cyanophenyls respectively. The compounds exhibited bright blue emissions in low- to high-polarity solvents, with high ifs of 88-90% in toluene, as well as impressive two-photon absorption cross-sections at the near-infrared (NIR) 700 nm.

• 出版日期2017-12-27
• 单位同济大学; 江南大学