%0 Journal Article %A Schulzke, Carola %A Enright, Dave %A Sugiyama, Hiroyasu %A LeBlanc, Guy %A Gambarotta, Sandro %A P. A. Yap, Glenn %A Thompson, Laurence K. %A Wilson, David R. %A Duchateau, Rob %D 2002 %T The Unusual Stability of Homoleptic Di- and Tetravalent Chromium Alkyls %U https://acs.figshare.com/articles/journal_contribution/The_Unusual_Stability_of_Homoleptic_Di-_and_Tetravalent_Chromium_Alkyls/3772476 %R 10.1021/om020237z.s002 %2 https://ndownloader.figshare.com/files/5881263 %K tetranuclear homoleptic %K Li %K divalent %K ethylene %K MgCl %K tetravalent homoleptic R 4 Cr %K proton transfer agents %K chemical inertness %K CrCl 3 %K type %K R 2 Cr %K 3 SiCH 2 %K 3 CCH 2 %K Tetravalent Chromium Alkyls Reaction %K THF %K compounds display %K 2 b %K Unusual Stability %K Homoleptic Di %K 3 equiv %X Reaction of CrCl3(THF)3 with 3 equiv of R−M [R = Me3CCH2 (a), Me3SiCH2 (b)] afforded either the previously reported tetravalent homoleptic R4Cr (1a, b) [M = MgCl] or the unprecedented divalent and tetranuclear homoleptic [R2Cr]4 (2b) [M = Li]. Both types of compounds display a remarkable chemical inertness toward proton transfer agents but readily react with ethylene. %I ACS Publications