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DOI: 10.1039/A703728G (Paper) Reference Section for: J. Chem. Soc., Dalton Trans., 1997, 4371-4376

Soft X-ray induced excited spin state trapping and soft X-ray photochemistry at the iron L2,3 edge in [Fe(phen)2(NCS)2] and [Fe(phen)2(NCSe)2] (phen = 1,10-phenanthroline)[hair space]‡

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David Collison, C. David Garner, Catherine M. McGrath, J. Frederick W. Mosselmans, Mark D. Roper, Jon M. W. Seddon, Ekk Sinn and Nigel A. Young

Abstract

The first observation of soft X-ray induced excited spin state trapping has been made for [Fe(phen)2(NCS)2] and [Fe(phen)2(NCSe)2] (phen = 1,10-phenanthroline) at ca. 45 K, analogous to light induced excited spin state trapping but at much higher energy. Soft X-ray photochemistry has also been observed in the high- and low-spin states of [Fe(phen)2(NCS)2] and [Fe(phen)2(NCSe)2], resulting in the formation of a thermally irreversible low-spin state. The rate of formation of this low-spin state is greater from low than from high spin, and is also greater in [Fe(phen)2(NCSe)2] than in [Fe(phen)2(NCS)2].

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