Nonlinear rotational spectroscopy reveals many-body interactions in water molecules.

ABSTRACT: Because of their central importance in chemistry and biology, water molecules have been the subject of decades of intense spectroscopic investigations. Rotational spectroscopy of water vapor has yielded detailed information about the structure and dynamics of isolated water molecules, as well as water dimers and clusters. Nonlinear rotational spectroscopy in the terahertz regime has been developed recently to investigate the rotational dynamics of linear and symmetric-top molecules whose rotational energy levels are regularly spaced. However, it has not been applied to water or other lower-symmetry molecules with irregularly spaced levels. We report the use of recently developed two-dimensional (2D) terahertz rotational spectroscopy to observe high-order rotational coherences and correlati

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC8501843 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature