Article ; Online: 2-Aryl-3H-1,3-benzazaphosphole Oxides: Synthesis, Optical Properties, and Excited State Intramolecular Proton Transfer.
Chemistry (Weinheim an der Bergstrasse, Germany)
2024 , Page(s) e202400807
Abstract: Inclusion of a heteroatom to the phosphole ring is a promising strategy to intrinsically modulate the optical properties of phosphole derivatives. We report on a series of 2-aryl-3H-1,3-benzazaphosphole oxides that were efficiently prepared via ... ...
Abstract | Inclusion of a heteroatom to the phosphole ring is a promising strategy to intrinsically modulate the optical properties of phosphole derivatives. We report on a series of 2-aryl-3H-1,3-benzazaphosphole oxides that were efficiently prepared via sequential C-P cross-coupling, dehydrative [3 + 2] cycloaddition, and ring-oxidation reactions. The inclusion of one nitrogen atom into the benzophosphole framework caused red shifting of the absorption and emission maxima, reflecting the greater stabilization of the LUMO level. 2-(2-Hydroxyphenyl)benzazaphosphole oxide underwent excited state intramolecular proton transfer and emitted a weak fluorescence from the excited state of the N-H tautomer. |
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Language | English |
Publishing date | 2024-04-08 |
Publishing country | Germany |
Document type | Journal Article |
ZDB-ID | 1478547-X |
ISSN | 1521-3765 ; 0947-6539 |
ISSN (online) | 1521-3765 |
ISSN | 0947-6539 |
DOI | 10.1002/chem.202400807 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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