Ultrafast vibrational dynamics of adenine-thymine base pairs in DNA oligomers

The Journal of Physical Chemistry. B
J R DwyerThomas Elsaesser

Abstract

N-H stretching excitations of DNA oligomers containing 23 alternating adenine-thymine base pairs are studied in femtosecond two-color pump-probe experiments. For a DNA film in a zero relative humidity atmosphere, transient vibrational spectra and their time evolution up to 10 ps demonstrate negligible spectral diffusion and allow for discerning different N-H stretching bands and the O-H stretching absorption of residual water molecules. Lifetimes on the order of 0.5 ps are found for both N-H and O-H stretching modes. The time-dependent pump-probe anisotropies of the different N-H excitations point to a pronounced coupling among them, whereas the O-H stretching anisotropy remains essentially constant.

References

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Sep 9, 2004·The Journal of Chemical Physics·Sander Woutersen, Gloria Cristalli
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Citations

Aug 18, 2010·Physical Chemistry Chemical Physics : PCCP·Yun-An Yan, Oliver Kühn
Feb 23, 2012·Physical Chemistry Chemical Physics : PCCP·Takayoshi Kobayashi, Yuichiro Kida
Jun 12, 2013·Physical Chemistry Chemical Physics : PCCP·Yevgeniy NosenkoBernhard Brutschy
Aug 12, 2009·Biological Chemistry·Thomas Elsaesser
Apr 6, 2013·The Review of Scientific Instruments·Jason R DwyerThomas Elsaesser
May 20, 2014·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Halina AbramczykAlina Morawiec-Sztandera
Nov 17, 2015·The Journal of Chemical Physics·Jianping WangJuan Zhao
Jul 1, 2015·The Journal of Physical Chemistry. B·Torsten SiebertThomas Elsaesser
Feb 24, 2015·The Journal of Physical Chemistry. B·Jenée D CyranAmber T Krummel
Apr 16, 2016·The Journal of Physical Chemistry. B·Gordon HithellNeil T Hunt
Jan 20, 2011·The Journal of Physical Chemistry. B·Ming YangFriedrich Temps
Jan 11, 2011·The Journal of Physical Chemistry. B·Ming YangThomas Elsaesser
Feb 16, 2011·The Journal of Physical Chemistry. B·Yun-an Yan, Oliver Kühn
Oct 17, 2013·The Journal of Physical Chemistry. B·Christian Greve, Thomas Elsaesser
Jun 15, 2016·Physical Chemistry Chemical Physics : PCCP·Bing XueTakayoshi Kobayashi
May 7, 2010·Angewandte Chemie·Łukasz SzycThomas Elsaesser
Jan 28, 2009·Science and Technology of Advanced Materials·Takashi Koretsune, Susumu Saito
Sep 22, 2009·The Journal of Physical Chemistry. B·André DallmannNikolaus P Ernsting
May 21, 2010·The Journal of Physical Chemistry. B·Łukasz SzycThomas Elsaesser
Aug 21, 2020·The Journal of Physical Chemistry. B·Julia WittmarIzabella Brand

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