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Beilstein J. Org. Chem. 2017, 13, 2304–2309, doi:10.3762/bjoc.13.226
Graphical Abstract
Figure 1: Phosphole-based tetracyclic heteroacenes.
Scheme 1: Synthesis of benzophospholo[3,2-b]indole 3.
Scheme 2: Chemical modifications of the phosphorus atom of 3.
Figure 2: ORTEP drawing of compound 3 (left) and 4 (right) with 50% probability. All hydrogen atoms are omitt...
Figure 3: UV–vis absorption (left) and normalized fluorescence emission (right, excitation at 335 nm) spectra...
Figure 4: The spatial plots of the HOMO and LUMO of compounds 3, 4, 7 and 9. The calculations were performed ...
Figure 5: The spatial plots of the selected molecular orbitals of compounds 5 and 6. The calculations were pe...