The exposure of CrCl(THF) to 1 equiv. of TEMPO and 1 equiv. [TEMPO]Na afforded (η-O,N-TEMPO)CrCl (1, 67%); addition of [TEMPO]Na to 1 yielded (η-O,N-TEMPO)Cr(TEMPO) (2). Both 1 and 2 exhibit pseudo-pentagonal planar (PPP) geometry, instead of myriad alternatives. Calculations and spectral studies suggest the solid-state geometry persists in solution.
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TEMPO coordination and reactivity in group 6; pseudo-pentagonal planar (η-TEMPO)CrX (X = Cl, TEMPO).
Chem Commun (Camb)
August 2022
Dept. of Chemistry and Chemical Biology Baker Laboratory, Cornell University, Ithaca, NY, 14853, USA.
The exposure of CrCl(THF) to 1 equiv. of TEMPO and 1 equiv. [TEMPO]Na afforded (η-O,N-TEMPO)CrCl (1, 67%); addition of [TEMPO]Na to 1 yielded (η-O,N-TEMPO)Cr(TEMPO) (2).
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