Improved transparency-nonlinearity trade-off with boroxine-based octupolar molecules
A series of octupolar molecules derived from the boroxine framework were designed and their optical nonlinearities were investigated by performing harmonic light scattering experiments in solution; the molecules were found to combine excellent transparency in the near UV-visible region (λ max ≤ 280 nm) and significant first-order hyperpolarisabilities (up to β(0) = 56 × 10-30 esu).
Alcaraz, Gilles,Euzenat, Lisenn,Mongin, Olivier,Katan, Claudine,Ledoux, Isabelle,Zyss, Joseph,Blanchard-Desce, Mireille,Vaultier, Michel
Copper-Catalyzed Cyanation of Aryl- and Alkenylboronic Reagents with Cyanogen Iodide
Direct catalytic cyanation of organoboronic acids with cyanogen iodide has been achieved by using a copper-bipyridine catalyst system. The cyanation reaction is likely to occur through two catalytic cycles: copper(II)-catalyzed iodination of organoboronic acids and the following cyanidocopper(I)-mediated cyanation of organic iodides.
Okamoto, Kazuhiro,Sakata, Naoki,Ohe, Kouichi
supporting information
p. 4670 - 4673
(2015/10/12)
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