These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Correlation of the vibrations of the aqueous azide ion with the O-H modes of bound water molecules.
    Author: Kuo CH, Vorobyev DY, Chen J, Hochstrasser RM.
    Journal: J Phys Chem B; 2007 Dec 20; 111(50):14028-33. PubMed ID: 18044873.
    Abstract:
    Dual frequency two-dimensional infrared spectroscopy (2D-IR) has been used to investigate the dynamics of the azide-water solvation shell. The memory of the azide transition frequencies is detected in the echo emitted by the OH stretching mode of the ion-bound water molecules. There is a significant positive correlation of the two frequency distributions that decays on a 140 fs time scale. The result confirms that the O-H bond of water molecules in the solvent shell have frequency fluctuations that are considerably slowed from those that are known in bulk water. The positive correlation is attributed to cooperative interactions of coordinated water molecules with an azide ion.
    [Abstract] [Full Text] [Related] [New Search]