Observation of Terahertz Vibrations in the Nitrogenase FeMo Cofactor by Femtosecond Pump-Probe Spectroscopy

被引：8
作者：
Delfino, Ines
Cerullo, Giulio [3 ]
Cannistraro, Salvatore
Manzoni, Cristian [3 ]
Polli, Dario [3 ]
Dapper, Christie [4 ]
Newton, William E. [4 ]
Guo, Yisong [1 ]
Cramer, Stephen P. [1 ,2 ]
机构：
[1] Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA
[3] Politecn Milan, IFN CNR, Dipartimento Fis, Milan, Italy
[4] Virginia Polytech Inst & State Univ, Dept Biochem, Blacksburg, VA 24061 USA
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 23期
关键词：
bioinorganic chemistry; nitrogenases; pump-probe spectroscopy; vibrational spectroscopy; IRON-MOLYBDENUM COFACTOR; CHARGE-TRANSFER DYNAMICS; PYROCOCCUS-FURIOSUS RUBREDOXIN; RESONANCE RAMAN-SPECTROSCOPY; NORMAL-MODE ANALYSIS; COHERENCE SPECTROSCOPY; N-2; REDUCTION; ACTIVE-SITE; STATE; PLASTOCYANIN;
D O I：
10.1002/anie.200906787
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Pump it upl The FeMo cofactor (see picture) has resisted characterization by resonance Raman spectroscopy. Impulsive coherent vibrational spectroscopy may be an alternative probe of its dynamics. A 15 fs visible laser pulse pumped the sample to an excited electronic state, and a second < 10 fs pulse probed the change in transmission as a function of the time delay. (Figure Presented) © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：3912 / 3915
页数：4
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