Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Search profiles from fitting the Fe K-edge EXAFS of NifX:NifB-co 6Fe model. (a) 3D plot of the search profile of number (N) versus distance (R) for the proposed Fe-N interaction showing the minimum at ~ 2.0 Å and 1 atom (χo = observed EXAFS; χc = calculated EXAFS). (b) 3D plot of the search profile of Fe-N distance versus Fe-S distance. The dark line in (b) highlights the trough due to the Fe-N interaction.
