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

被引：7

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

页码：3912 / 3915

页数：4

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