Chromium(VI) Bisimido Dichloro, Bisimido Alkylidene, and Chromium(V) Bisimido Iodo N‐Heterocyclic Carbene Complexesdoi:10.18419/darus-1686DaRUS2021-04-221Panyam, Pradeep Kumar Reddy; Stöhr, Laura; Wang, Dongren; Frey, Wolfgang; Buchmeiser, Michael, 2021, "Chromium(VI) Bisimido Dichloro, Bisimido Alkylidene, and Chromium(V) Bisimido Iodo N‐Heterocyclic Carbene Complexes", https://doi.org/10.18419/darus-1686, DaRUS, V1Chromium(VI) Bisimido Dichloro, Bisimido Alkylidene, and Chromium(V) Bisimido Iodo N‐Heterocyclic Carbene Complexesdoi:10.18419/darus-1686Panyam, Pradeep Kumar ReddyStöhr, LauraWang, DongrenFrey, WolfgangBuchmeiser, Michael358283783 - SFB 1333DaRUSBuchmeiser, MichaelPanyam, Pradeep2021-03-11Chemistryinorganic chemistryReaction 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 MestreNovaStructure and Reactivity of Chromium(VI) Alkylidenes10.1021/jacs.8b04882Structure and Reactivity of Chromium(VI) AlkylidenesNMR Spectra of 10C.zipapplication/zipNMR Spectra of 11C.zipapplication/zipNMR Spectra of 13.zipapplication/zipNMR Spectra of 14.zipapplication/zipNMR Spectra of 1C.zipapplication/zipNMR Spectra of 2C.zipapplication/zipNMR Spectra of 3C.zipapplication/zipNMR Spectra of 4C.zipapplication/zipNMR spectra of 5C.zipapplication/zipNMR Spectra of 6C.zipapplication/zipNMR Spectra of 7C.zipapplication/zipNMR Spectra of 8C.zipapplication/zipNMR Spectra of 9C.zipapplication/zip