Crossover from hydrogen to chemical bonding
Abstract
Hydrogen bonding (H-bonding) unquestionably plays an important role in chemical and biological systems and is responsible for some of their unusual properties. Strong, short H-bonds constitute a separate class that, owing to their elusive characterization, has remained a point of contention over the past several decades. Using femtosecond two-dimensional infrared spectroscopy in conjunction with quantum chemical calculations, Dereka et al. demonstrate a powerful way to investigate the nature of short H-bonding (see the Perspective by Bonn and Hunger). Their quantitative characterization of multiple coupled motions in the model system of bifluoride anion [F-H-F] − in aqueous solution reveals several distinctive features of a crossover from conventional to short, strong H-bonding.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 08, 2021
- Source ID
- 10.1126/science.abe1951
Entities
People
- Andrei Tokmakoff
- Bogdan Dereka
- Joel Bowman
- Nicholas H C Lewis
- Qi Yu
- William B. Carpenter
Organizations
- Army Research Office
- Emory University
- National Science Foundation
- Swiss National Science Foundation
- United States Department of Energy
- University of Chicago