Retraction of

• A methylnickel intermediate in a bimetallic mechanism of acetyl-coenzyme A synthesis by anaerobic bacteria.

  Kumar M, Qiu D, Spiro TG, Ragsdale SW. Kumar M, et al. Science. 1995 Oct 27;270(5236):628-30. doi: 10.1126/science.270.5236.628. Science. 1995. Retraction in: Science. 1997 Oct 3;278(5335):21. doi: 10.1126/science.278.5335.17h. PMID: 7570019 Retracted.
• Nature's carbonylation catalyst: Raman spectroscopic evidence that carbon monoxide binds to iron, not nickel, in CO dehydrogenase.

  Qiu D, Kumar M, Ragsdale SW, Spiro TG. Qiu D, et al. Science. 1994 May 6;264(5160):817-9. doi: 10.1126/science.8171334. Science. 1994. Retraction in: Science. 1997 Oct 3;278(5335):21. doi: 10.1126/science.278.5335.17h. PMID: 8171334 Retracted.