Conformational isomers (conformers) of molecules play a decisive role in biology and organic chemistry. However, experimental methods for investigating chemical reaction dynamics are typically not conformersensitive. We report on a gas-phase megaelectronvolt ultrafast electron diffraction investigation of a-phellandrene undergoing an electrocyclic ring-opening reaction. We directly imaged the evolution of a specific set of a-phellandrene conformers into the product isomer predicted by the Woodward-Hoffmann rules in real space and time. Our experimental results are in quantitative agreement with nonadiabatic quantum molecular dynamics simulations, which provide considerable detail of how conformation influences the time scale and quantum eff...
Folding, isomerization, and dissociation of molecules, i.e., bond breaking and bond formation, is ha...
Ultrafast electron diffraction is a powerful technique that can resolve molecular structures with fe...
Doctor of PhilosophyDepartment of PhysicsDaniel RollesImaging molecular structures evolving at their...
Ultrafast electron diffraction has emerged since the end of last century, and has become an increasi...
We resolve the structural dynamics of the ultrafast photoinduced ring opening reaction of 1,3-cycloh...
We demonstrate an experimental method to record snapshot diffraction images of polyatomic gas-phase ...
A long-held thought experiment of science is the direct observation of the motions of atoms and mole...
We have measured the angular distributions of high energy photoelectrons of benzene molecules genera...
We demonstrate an experimental method to record snapshot diffraction images of polyatomic gas-phase ...
Citation: Ito, Y., Wang, C., Le, A. T., Okunishi, M., Ding, D., Lin, C. D., & Ueda, K. (2016). Extra...
Identifying multiple rival reaction products and transient species formed during ultrafast photochem...
The imaging of molecular motions has long been a gedanken experiment in the development of models ex...
Citation: Wang, X., Le, A. T., Yu, C., Lucchese, R. R., & Lin, C. D. (2016). Retrieving transient co...
Molecular dynamics is now routinely studied on femtosecond time scales using various spectroscopies....
In this article we consider consequences of spatial coherences and conformations in diffraction of (...
Folding, isomerization, and dissociation of molecules, i.e., bond breaking and bond formation, is ha...
Ultrafast electron diffraction is a powerful technique that can resolve molecular structures with fe...
Doctor of PhilosophyDepartment of PhysicsDaniel RollesImaging molecular structures evolving at their...
Ultrafast electron diffraction has emerged since the end of last century, and has become an increasi...
We resolve the structural dynamics of the ultrafast photoinduced ring opening reaction of 1,3-cycloh...
We demonstrate an experimental method to record snapshot diffraction images of polyatomic gas-phase ...
A long-held thought experiment of science is the direct observation of the motions of atoms and mole...
We have measured the angular distributions of high energy photoelectrons of benzene molecules genera...
We demonstrate an experimental method to record snapshot diffraction images of polyatomic gas-phase ...
Citation: Ito, Y., Wang, C., Le, A. T., Okunishi, M., Ding, D., Lin, C. D., & Ueda, K. (2016). Extra...
Identifying multiple rival reaction products and transient species formed during ultrafast photochem...
The imaging of molecular motions has long been a gedanken experiment in the development of models ex...
Citation: Wang, X., Le, A. T., Yu, C., Lucchese, R. R., & Lin, C. D. (2016). Retrieving transient co...
Molecular dynamics is now routinely studied on femtosecond time scales using various spectroscopies....
In this article we consider consequences of spatial coherences and conformations in diffraction of (...
Folding, isomerization, and dissociation of molecules, i.e., bond breaking and bond formation, is ha...
Ultrafast electron diffraction is a powerful technique that can resolve molecular structures with fe...
Doctor of PhilosophyDepartment of PhysicsDaniel RollesImaging molecular structures evolving at their...