Iron motion in a five-coordinated heme model

✍ Scribed by Xiao-Yuan Li; Marek Z. Zgierski

• Book ID: 103034660
• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 467 KB
• Volume: 188
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(92)85081-k

✦ Synopsis

It is shown that the iron motion in a five-coordinated heme model is controlled mainly by the ys out-of-plane vibration in which the iron atom and the axial ligand move like a rigid unit with respect to the rest of the heme, so the heme domes in-phase with the rigid collective motion of the Fe-L unit. A simple model is presented which accounts for the observed strongly anharmonic behaviour of the mean-square vibrational amplitude of the iron atom as a function of temperature.