Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-59239
Helbing, J (2012). Spin state transitions upon visible and infrared excitation of ferric MbN3. Chemical Physics, 396:17-22.
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When azide binds to ferric Myoglobin it forms either a low-spin or a high-spin complex, which give rise to two well-separated asymmetric stretch bands of the ligand. Both electronic excitation of the Q-band and vibrational excitation of View the MathML source in the mid-IR lead to a similar ultrafast population redistribution in favor of the high spin configuration, which is characterized by a 8° reorientation of the ligand transition dipole moment. The more stable low spin complex subsequently re-emerges with a 18 ps time-constant. It is argued that the observed spin state changes are caused by the participation of low-lying electronic excitations in the cooling process of heme.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Department of Chemistry|
|Dewey Decimal Classification:||540 Chemistry|
|Deposited On:||07 Mar 2012 16:37|
|Last Modified:||14 Jun 2014 23:45|
|Funders:||Swiss National Science Foundation (SNF)|
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