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Persistent spectral hole-burning in the R 1 line of Cr 3+ -doped NaMg[Al(oxalate) 3 ]·9(H 2 O/D 2 O) induced by resonant energy transfer

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Published in Journal of Physical Chemistry. A. 2010, vol. 114, no. 12, p. 4169-4172
Abstract In the 3D network [Rh(bpy)3][NaCr(ox)3]ClO4 (ox ) oxalate, bpy ) 2,2'-bipyridine) phonon-assisted as well as resonant energy migration within the R1 line of the 4A2 f 2E transition of Cr3+ has been identified. The latter is dominant below 4.2 K, and in a fluorescence line narrowing spectrum, it manifests itself in a multiline pattern across the inhomogeneous line width with spacings corresponding to the zero-field splitting of the 4A2 ground state (Milos, M.; Kairouani, S.; Rabaste, S.; Hauser, A. Coord. Chem. ReV. 2008, 252, 2540). H. Riesen demonstrated efficient spectral hole burning within the R1 line of Cr3+ doped at low concentrations into partially deuterated NaMg[Al(ox)3] ·9H2O (Riesen, H. Coord. Chem. ReV. 2006 250, 1737). Here we show that at higher Cr3+ concentrations in the same host, both phenomena can be observed simultaneously, the resonant energy migration thus creating an additional series of persistent side holes.
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MILOS, Mia, HAUSER, Andreas. Persistent spectral hole-burning in the R 1 line of Cr 3+ -doped NaMg[Al(oxalate) 3 ]·9(H 2 O/D 2 O) induced by resonant energy transfer. In: Journal of Physical Chemistry. A, 2010, vol. 114, n° 12, p. 4169-4172. https://archive-ouverte.unige.ch/unige:6522

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Deposited on : 2010-05-06

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