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Structural Determination of a Short-lived excited Iron(II) Complex by Picosecond X-ray Absorption Spectroscopy

Published inPhysical review letters, vol. 98, no. 8, 57401
Publication date2007
Abstract

Structural changes of the iron(II)-tris-bipyridine ([FeII(bpy)3]2+) complex induced by ultrashort pulse excitation and population of its short-lived (0.6 ns) quintet high spin state have been detected by picosecond x-ray absorption spectroscopy. The structural relaxation from the high spin to the low spin state was followed over the entire lifetime of the excited state. A combined analysis of the x-ray-absorption near-edge structure and extended x-ray-absorption fine structure spectroscopy features delivers an Fe-N bond elongation of 0.2 Å in the quintet state compared to the singlet ground state.

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GAWELDA, Wojciech et al. Structural Determination of a Short-lived excited Iron(II) Complex by Picosecond X-ray Absorption Spectroscopy. In: Physical review letters, 2007, vol. 98, n° 8, p. 57401. doi: 10.1103/PhysRevLett.98.057401
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ISSN of the journal0031-9007
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