10.18419/darus-1686Panyam, Pradeep Kumar ReddyPradeep Kumar ReddyPanyam0000-0001-6315-2747Universität StuttgartStöhr, LauraLauraStöhrUniversität StuttgartWang, DongrenDongrenWang124116817Universität StuttgartFrey, WolfgangWolfgangFrey0000-0002-6522-4190Universität StuttgartBuchmeiser, MichaelMichaelBuchmeiser0000-0001-6472-5156Universität StuttgartChromium(VI) Bisimido Dichloro, Bisimido Alkylidene, and Chromium(V) Bisimido Iodo N‐Heterocyclic Carbene ComplexesDaRUS2021Chemistryinorganic chemistryBuchmeiser, MichaelMichaelBuchmeiserUniversität Stuttgart2021-03-112021-04-2210.1021/jacs.8b04882128211771703023996645720121221981134259112385171215965126476212425597135751272739713715application/zipapplication/zipapplication/zipapplication/zipapplication/zipapplication/zipapplication/zipapplication/zipapplication/zipapplication/zipapplication/zipapplication/zipapplication/zip1.0CC BY 4.0Reaction of CrCl2(N-tBu)2 with 1,3-dimethylimidazol-2-ylidene (IMe), 1,3-dimethyl-4,5-dichloroimidazol-2-ylidene (IMeCl2), 1,3-di(2-propyl)imidazol-2-ylidene (IPr), 1,3-dimesitylimidazol-2-ylidene (IMes) and 1,3-bis(2,6-(2-Pr)2C6H3)imidazol-2-ylidene (IDipp) yields the corresponding N-heterocyclic carbene (NHC) adducts CrCl2(IMe)(N-tBu)2 (1), CrCl2(IMeCl2)(N-tBu)2 (2), CrCl2(IPr)(N-tBu)2 (3), CrCl2(IMes)(N-tBu)2 (4) and CrCl2(IDipp)(N-tBu)2 (5). Likewise, reaction of CrCl2(N-2,6-(2-Pr)2C6H3)2 and CrCl2(N-adamantyl)2 with IMes yields CrCl2(N-2,6-(2-Pr)2C6H3)2(IMes) (6) and CrCl2(N-adamantyl)2(IMes) (7), respectively. Reaction of CrCl2(N-tBu)2 with the bidentate NHCs 1-R-3-(1-(2-LiO-C6H4))imidazol-2-ylidene yields the corresponding pentacoordinated Cr (VI) complexes CrCl2(1-R-3-(1-(2-O-C6H4))imidazol-2-ylidene)2C6H3)2(IMes) (R = 2,4,6-(CH3)3C6H2, 8), (R = tBu, 9), (R = 2-phenyl-C6H4, 10). Reaction of the chromium (VI) complex Cr(N-2,6-(2-Pr)2-C6H3)2(CH2C(CH3)3)2 with 1,3-dimethylimidazol-2-ylidene.AgI yields the bimetallic silver adduct of the chromium alkylidene complex (11) along with the tetrahedral chromium (V) complex CrI(N-2,6-(2-Pr)2-C6H3)2(1,3-dimethylimidazol-2-ylidene) (12). Compounds 1 – 4, 7, 9 – 12 were characterized by single crystal X-ray analysis. Finally, the chromium (VI) bisimido-amido complexes 13 – 14 bearing the N-6-(2-(diethylboryl)phenyl)pyridyl-2-yl-motif are reported. .All primary data files and processed data of the journal article from Buchmeiser group. Chromium(VI) Bisimido Dichloro, Bisimido Alkylidene, and Chromium(V) Bisimido Iodo N‐Heterocyclic Carbene ComplexesNMR spectra were processed with MestreNovaDFG358283783 - SFB 1333