Structural determination of a short-lived excited iron(II) complex by picosecond x-ray absorption spectroscopy

被引：195

作者：

Gawelda, Wojciech

Pham, Van-Thai

Benfatto, Maurizio

Zaushitsyn, Yuri

Kaiser, Maik

Grolimund, Daniel

Johnson, Steven L.

Abela, Rafael

Hauser, Andreas

Bressler, Christian ^{[1
]}

Chergui, Majed

机构：

[1] Ecole Polytech Fed Lausanne, FSB BSP, ISIC, Lab Spect, CH-1015 Lausanne, Switzerland

[2] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland

[3] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[4] Univ Geneva, Dept Chim Phys, CH-1121 Geneva, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.98.057401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Structural changes of the iron(II)-tris-bipyridine ([Fen(II)(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 angstrom in the quintet state compared to the singlet ground state.

引用

页数：4

共 36 条

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