Electric Literature of C6H12O3In 2020 ,《Singlet Fission in a Pyrrole-Fused Cross-Conjugated Skeleton with Adaptive Aromaticity》 was published in Journal of the American Chemical Society. The article was written by Wang, Long; Lin, Lu; Yang, Jingjing; Wu, Yishi; Wang, Hua; Zhu, Jun; Yao, Jiannian; Fu, Hongbing. The article contains the following contents:
Singlet fission (SF) materials hold the potential to increase the power conversion efficiency of solar cells by reducing the thermalization of high-energy excited states. The major hurdle in realizing this potential is the limited scope of SF-active materials with high fission efficiency, suitable energy levels, and sufficient chem. stability. Herein, using theor. calculation and time-resolved spectroscopy, a highly stable SF material is developed on dipyrrolonaphthyridinedione (DPND), a pyrrole-fused cross-conjugated skeleton with a distinctive adaptive aromaticity (dual aromaticity) character. The embedded pyrrole ring with 4n + 2 π-electron features aromaticity in the ground state, while the dipole resonance of the amide bonds promotes a 4n π-electron Baird’s aromaticity in the triplet state. Such an adaptive aromaticity renders the mol. efficient for the SF process [E(S1) ≥ 2E(T1)] without compromising its stability. Up to 173% triplet yield, strong blue-green light absorption, and suitable triplet energy of 1.2 eV, as well as excellent stability, make DPND a promising SF sensitizer toward practical applications.2,5-Dimethoxytetrahydrofuran(cas: 696-59-3Electric Literature of C6H12O3) was used in this study.
2,5-Dimethoxytetrahydrofuran(cas: 696-59-3) is a member of ether. Friedel Crafts reaction, for example, adds an alkyl or acyl group to aromatic ethers when they react with an alkyl or acyl halide in the presence of a Lewis acid as a catalyst.Electric Literature of C6H12O3
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem