Related Experiment Video

Updated: Mar 24, 2026

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems
09:57

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Published on: February 10, 2020

7.7K

Influence of strong and weak hydrogen bonds in ices on stimulated Raman scattering

Tianyu Li, Fangfang Li, Zhanlong Li

    Optics Letters
    |March 16, 2016
    PubMed

    More Related Videos

    Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems07:44

    Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems

    Published on: April 28, 2016

    15.7K
    Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy10:28

    Probing the Structure and Dynamics of Interfacial Water with Scanning Tunneling Microscopy and Spectroscopy

    Published on: May 27, 2018

    9.6K

    Related Concept Videos

    IR Spectrum Peak Broadening: Hydrogen Bonding01:23

    IR Spectrum Peak Broadening: Hydrogen Bonding

    The vibrational frequency of a bond is directly proportional to its bond strength. As a result, stronger bonds vibrate at higher frequencies, while weaker bonds vibrate at lower frequencies. The stretching vibration of the strong O–H bond in alcohols and phenols (very dilute solution or gas phase) appears as a sharp peak at 3600–3650 cm−1.
    However, the extent of hydrogen bonding influences the observed stretching frequency and band broadening. Intermolecular or intramolecular...
    2.1K
    Raman Spectroscopy: Overview01:20

    Raman Spectroscopy: Overview

    The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
    However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
    2.3K
    IR Spectrum Peak Intensity: Amount of IR-Active Bonds00:55

    IR Spectrum Peak Intensity: Amount of IR-Active Bonds

    When infrared radiation is passed through a molecule, absorption occurs if the molecule's vibration leads to a substantial change in its bond dipole moment. Transitions between vibrational energy levels, typically corresponding to infrared frequencies (4000–400 cm−1), allow absorption if the vibration significantly alters the dipole moment, making the molecule infrared active. The molecular bonds have different stretching and bending vibrations, resulting in various peaks with...
    1.3K
    Hydrogen Bonds01:04

    Hydrogen Bonds

    A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
    16.0K
    Hydrogen Bonds00:26

    Hydrogen Bonds

    Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
    Hydrogen Bonds Control the World!
    Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
    136.2K
    IR Spectrum Peak Intensity: Dipole Moment01:20

    IR Spectrum Peak Intensity: Dipole Moment

    The dipole moment of a bond is the product of the partial charge on either atom and the distance between them. Dipole moments influence the efficiency of IR absorption and the peak intensity. When a bond with a dipole moment is placed in an electric field, the direction of the field determines if the bond is compressed or stretched. Electromagnetic radiation consists of an electric field component that rapidly reverses direction. It follows that polar bonds are alternately stretched and...
    1.8K