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Two-dimensional infrared spectroscopy of peptides by phase-controlled femtosecond vibrational photon echoes
Open accessAbstract
Two-dimensional infrared spectra of peptides are introduced that are the direct analogues of two- and three-pulse multiple quantum NMR. Phase matching and heterodyning are used to isolate the phase and amplitudes of the electric fields of vibrational photon echoes as a function of multiple pulse delays. Structural information is made available on the time scale of a few picoseconds. Line narrowed spectra of acyl-proline-NH 2 and cross peaks implying the coupling between its amide-I modes are obtained, as are the phases of the various contributions to the signals. Solvent-sensitive structural differences are seen for the dipeptide. The methods show great promise to measure structure changes in biology on a wide range of time scales.
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Cited by
Two-dimensional spectroscopy of electronic couplings in photosynthesis
Brixner, T., Stenger, J., Vaswani, H. M., Cho, M., Blankenship, R. E., & Fleming, G. R. (2005) · Nature · doi:10.1038/nature03429 · Cited by 1,241
Two-Dimensional Femtosecond Spectroscopy
Jonas, D. M. (2003) · Annual Review of Physical Chemistry · doi:10.1146/annurev.physchem.54.011002.103907 · Cited by 1,198
Coherent Two-Dimensional Optical Spectroscopy
Cho, M. (2008) · Chemical Reviews · doi:10.1021/cr078377b · Cited by 835
Ishizaki, A., & Tanimura, Y. (2006) · The Journal of Chemical Physics · doi:10.1063/1.2244558 · Cited by 115
Zhuang, W., Cui, R. Z., Silva, D.-A., & Huang, X. (2011) · The Journal of Physical Chemistry B · doi:10.1021/jp109592b · Cited by 70
Metadata
- Authors
- Asplund, M. C., Zanni, M. T., & Hochstrasser, R. M.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2000-07-11
- Volume
- 97
- Issue
- 15
- Pages
- 8219-8224
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1990087831
- Cited by
- 512
- References
- 0
- FWCI
- 19.91
- Type
- journal article
- Language
- en
- Open access
- green
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- Asplund, M. C., Zanni, M. T., & Hochstrasser, R. M. (2000). Two-dimensional infrared spectroscopy of peptides by phase-controlled femtosecond vibrational photon echoes. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.140227997
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