Recommanded Product: 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolaneIn 2019 ,《Tuning the Optical Properties of Sulfonylaniline Derivatives: Degeneracy Breaking of Benzene Orbitals and Linkage through Nodal Planes》 was published in ChemPhysChem. The article was written by Kudo, Shoh; Hoshino, Nanami; Beppu, Teruo; Katagiri, Hiroshi. The article contains the following contents:
The orbital degeneracy of benzene rings is resolved by an asym. push-pull system in 2,6-bis(methylsulfonyl)aniline (BMeSA), in which the HOMO is located at the 4-position, while the LUMO is located at a different position and has a nodal plane through the carbon atoms at the 1- and 4-positions. Therefore, the π-extension of BMeSA at the 4-position reveals a strong overlap in the HOMO and a minimal overlap in the LUMO. Consequently, π-extended BMeSA derivatives exhibit longer absorbance and emission wavelengths in the order of the electron-donating abilities of their substituents at the 4-position, which is based on a decrease in an absolute HOMO-level-dependent HOMO-LUMO gap in accordance with the nodal arrangement. Pos. fluorescent solvatochromism with polarity-dependent decrease in fluorescent intensity was also observed The biaryls exhibited more planar geometries in the excited state than in the ground state. The charge transfer mechanism, which can be described as node-induced intramol. charge transfer (NICT), differs from the planar intramol. charge transfer (PICT) and twisted intramol. charge transfer (TICT). The experimental part of the paper was very detailed, including the reaction process of 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6Recommanded Product: 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane)
4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane(cas: 24388-23-6) also known as boronate ester, is generally used in metal-catalyzed C-C bond formation reactions like Suzuki–Miyaura reaction.Recommanded Product: 4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane
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