Vibrational Coherences and Relaxation in the High-Spin State of Aqueous [FeII(bpy)3]2+

被引:153
作者
Consani, Cristina [1 ]
Premont-Schwarz, Mirabelle [1 ]
ElNahhas, Amal [1 ]
Bressler, Christian [1 ]
van Mourik, Frank [1 ]
Cannizzo, Andrea [1 ]
Chergui, Majed [1 ]
机构
[1] Ecole Polytech Fed Lausanne, LSU, ISIC, Fac Sci Base,BSP, CH-1015 Lausanne, Switzerland
关键词
iron; spin crossover; time-resolved spectroscopy; ultrafast dynamics; vibrational relaxation; RAMAN-SPECTROSCOPY; DFT CALCULATIONS; CROSSOVER; COMPLEXES; IRON(II); DYNAMICS; SPECTRA;
D O I
10.1002/anie.200902728
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Dizzy cooling: Femtosecond excitation of the singlet states of aqueous [FeII(bpy)3]2+ (bpy=2,2′ - bipyridine) leads to the formation of a vibrationally hot quintet state that exhibits wave-packet dynamics arising from a chelate-ring and bending mode. The vibrational relaxation involves at least two modes: the Fe - N stretching mode (see picture) and the coherently excited chelatering and bending mode, which relax on different time scales. © 2009 Wiley-VCH Verlag GmbH & Co. KCaA.
引用
收藏
页码:7184 / 7187
页数:4
相关论文
共 19 条
[1]   DFT calculations of the structures and vibrational spectra of the [Fe(bpy)3]2+ and [Ru(bpy)3]2+ complexes [J].
Alexander, Bruce D. ;
Dines, Trevor J. ;
Longhurst, Rayne W. .
CHEMICAL PHYSICS, 2008, 352 (1-3) :19-27
[2]   ELECTRONIC ABSORPTION-SPECTRA OF THE IRON(II) COMPLEXES OF 2,2'-BIPYRIDINE, 2,2'-BIPYRIMIDINE, 1,10-PHENANTHROLINE, AND 2,2'-6',2''-TERPYRIDINE AND THEIR REDUCTION PRODUCTS [J].
BRATERMAN, PS ;
SONG, JI ;
PEACOCK, RD .
INORGANIC CHEMISTRY, 1992, 31 (04) :555-559
[3]   Femtosecond XANES Study of the Light-Induced Spin Crossover Dynamics in an Iron(II) Complex [J].
Bressler, Ch. ;
Milne, C. ;
Pham, V. -T. ;
ElNahhas, A. ;
van der Veen, R. M. ;
Gawelda, W. ;
Johnson, S. ;
Beaud, P. ;
Grolimund, D. ;
Kaiser, M. ;
Borca, C. N. ;
Ingold, G. ;
Abela, R. ;
Chergui, M. .
SCIENCE, 2009, 323 (5913) :489-492
[4]   Broadband femtosecond fluorescence spectroscopy of [Ru(bpy)3]2+ [J].
Cannizzo, Andrea ;
van Mourik, Frank ;
Gawelda, Wojciech ;
Zgrablic, Goran ;
Bressler, Christian ;
Chergui, Majed .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (19) :3174-3176
[5]   RESONANCE RAMAN-SPECTRA AND EXCITATION PROFILES OF TRIS(ALPHA-DIIMINE) COMPLEXES OF IRON(II) [J].
CLARK, RJH ;
TURTLE, PC ;
STROMMEN, DP ;
STREUSAND, B ;
KINCAID, J ;
NAKAMOTO, K .
INORGANIC CHEMISTRY, 1977, 16 (01) :84-89
[6]   Assessment of density functionals for the high-spin/low-spin energy difference in the low-spin iron(II) tris(2,2′-bipyridine) complex [J].
Daku, LML ;
Vargas, A ;
Hauser, A ;
Fouqueau, A ;
Casida, ME .
CHEMPHYSCHEM, 2005, 6 (07) :1393-1410
[7]   Ultrafast nonadiabatic dynamics of [FeII(bpy)3]2+ in solution [J].
Gawelda, Wojciech ;
Cannizzo, Andrea ;
Pham, Van-Thai ;
van Mourik, Frank ;
Bressler, Christian ;
Chergui, Majed .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (26) :8199-8206
[8]   Ultrafast dynamics of halogens in rare gas solids [J].
Guehr, M. ;
Bargheer, M. ;
Fushitani, M. ;
Kiljunen, T. ;
Schwentner, N. .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (07) :779-801
[9]   Spin crossover phenomena in Fe(II) complexes [J].
Gütlich, P ;
Garcia, Y ;
Goodwin, HA .
CHEMICAL SOCIETY REVIEWS, 2000, 29 (06) :419-427
[10]   Spin crossover -: An overall perspective [J].
Gütlich, P ;
Goodwin, HA .
SPIN CROSSOVER IN TRANSITION METAL COMPOUNDS I, 2004, 233 :1-47