Recombination studies of photodissociated MbCO by Mössbauer spectroscopy at low temperatures
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Rebinding of carbonmonoxide to myoglobin after photodissociation has been studied by Mössbauer spectroscopy at 57.6 K and below for up to 9 days. The time dependence is reproduced by a set of exponentials representing a distribution of activation enthalpies. A shift to smaller values of these activation enthalpies and of the preexponential factor compared to optical studies at higher temperatures has been observed as well as pumping into long-living states.
KeywordsSpectroscopy Thin Film Enthalpy Recombination Carbonmonoxide
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