%0 Journal Article %1 Nazish.2021 %A Nazish, Mohd %A Legendre, Christina M. %A Sarkar, Samir Kumar %A Luecken, Jana %A Goffitzer, Daniel J. %A Diefenbach, Martin %A Schwederski, Brigitte %A Herbst-Irmer, Regine %A Stalke, Dietmar %A Holthausen, Max C. %A Kaim, Wolfgang %A Roesky, Herbert W. %D 2021 %J Inorganic Chemistry %K imported %N 14 %P 10100-10104 %R 10.1021/acs.inorgchem.1c01438 %T Selective Route to Stable Silicon-Boron Radicals and Their Corresponding Cations %V 60 %X Herein, authors report on a facile and selective one-pot synthetic route to silicon-boron radicals. Reduction of Br2BTip (Tip = 2,4,6-iPrC6H2) with KC8 in the presence of LSi-R affords LSi(tBu)-B(Br)Tip (1) and LSi(N(TMS)2)-B(Br)Tip (2) L = PhC(NtBu)2. These first examples of silicon-boron isolated radical species feature spin d. on the silicon and boron atoms. 1 And 2 exhibit extraordinary stability to high temperatures under inert conditions in solution and air stability in the solid state. Both radicals have been isolated and fully characterized by ESR spectroscopy, SQUID magnetometry, mass spectrometry, cyclic voltammetry, single-crystal x-ray structure anal., and d. functional theory calculations Moreover, compound 1 exhibits one-electron transfer when treated with 1 equivalent of AgSO3CF3 and Ph3C+B(C6F5)4-, resp., resulting in the corresponding cations LSi(tBu)-B(Br)Tip+CF3SO3- (3) and LSi(tBu)-B(Br)Tip+B(C6F5)4- (4). Compounds 3 and 4 have been characterized with multinuclear NMR and mass spectrometry.

@article{Nazish.2021, abstract = {Herein, authors report on a facile and selective one-pot synthetic route to silicon-boron radicals. Reduction of Br2BTip (Tip = 2,4,6-iPrC6H2) with KC8 in the presence of LSi-R affords LSi(tBu)-B(Br)Tip (1) and LSi(N(TMS)2)-B(Br)Tip (2) [L = PhC(NtBu)2]. These first examples of silicon-boron isolated radical species feature spin d. on the silicon and boron atoms. 1 And 2 exhibit extraordinary stability to high temperatures under inert conditions in solution and air stability in the solid state. Both radicals have been isolated and fully characterized by ESR spectroscopy, SQUID magnetometry, mass spectrometry, cyclic voltammetry, single-crystal x-ray structure anal., and d. functional theory calculations Moreover, compound 1 exhibits one-electron transfer when treated with 1 equivalent of AgSO3CF3 and [Ph3C]+[B(C6F5)4]-, resp., resulting in the corresponding cations [LSi(tBu)-B(Br)Tip]+[CF3SO3]- (3) and [LSi(tBu)-B(Br)Tip]+[B(C6F5)4]- (4). Compounds 3 and 4 have been characterized with multinuclear NMR and mass spectrometry.}, added-at = {2022-06-15T12:05:25.000+0200}, author = {Nazish, Mohd and Legendre, Christina M. and Sarkar, Samir Kumar and Luecken, Jana and Goffitzer, Daniel J. and Diefenbach, Martin and Schwederski, Brigitte and Herbst-Irmer, Regine and Stalke, Dietmar and Holthausen, Max C. and Kaim, Wolfgang and Roesky, Herbert W.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2987a39d9c40a3413aa45c7a9e26fde91/huebleriac}, doi = {10.1021/acs.inorgchem.1c01438}, interhash = {2c66015b30c6a272693d66bd92fd1737}, intrahash = {987a39d9c40a3413aa45c7a9e26fde91}, issn = {0020-1669}, journal = {Inorganic Chemistry}, keywords = {imported}, number = 14, pages = {10100-10104}, timestamp = {2022-06-15T10:05:25.000+0200}, title = {Selective Route to Stable Silicon-Boron Radicals and Their Corresponding Cations}, volume = 60, year = 2021 }