158 citations · 514 across the 8 of their papers we have counts for
8 papers
High resolution quantum cascade laser spectroscopy of the simplest Criegee intermediate, CHOO, between 1273 cm and 1290 cm
Yuan-Pin Chang, Anthony J. Merer, Hsun-Hui Chang +3
The region 1273-1290 cm of the 4 fundamental of the simplest Criegee intermediate, CHOO, has been measured using a quantum cascade laser transient absorption spectrom…
Spatially-controlled complex molecules and their applications
Yuan-Pin Chang, Daniel A. Horke, Sebastian Trippel +1
The understanding of molecular structure and function is at the very heart of the chemical and molecular sciences. Experiments that allow for the creation of structurally pure samp…
Separating Para and Ortho Water
Daniel A. Horke, Yuan-Pin Chang, Karol Długołęcki +1
Water exists as two nuclear-spin isomers, para and ortho, determined by the overall spin of its two hydrogen nuclei. For isolated water molecules the conversion between these isome…
Chemical reactions of conformationally selected molecules in a beam with Coulomb-crystallized ions
Daniel Rösch, Stefan Willitsch, Yuan-Pin Chang +1
Many molecules exhibit multiple conformers that often easily interconvert under thermal conditions. Therefore, single conformations are difficult to isolate which renders the study…
Spatially separated polar samples of the cis and trans conformers of 3-fluorophenol
Thomas Kierspel, Daniel A. Horke, Yuan-Pin Chang +1
We demonstrate the spatial separation of the cis- and trans-conformers of 3-fluorophenol in the gas phase based on their distinct electric dipole moments. For both conformers we cr…
CMISTARK: Python package for the Stark-effect calculation and symmetry classification of linear, symmetric and asymmetric top wavefunctions in dc electric fields
Yuan-Pin Chang, Frank Filsinger, Boris G. Sartakov +1
The Controlled Molecule Imaging group (CMI) at the Center for Free Electron Laser Science (CFEL) has developed the CMIstark software to calculate, view, and analyze the energy leve…
Specific chemical reactivities of spatially separated 3-aminophenol conformers with cold Ca ions
Yuan-Pin Chang, Karol Długołęcki, Jochen Küpper +3
Many molecules exhibit multiple rotational isomers (conformers) that interconvert thermally and are difficult to isolate. Consequently, a precise characterization of their role in…
Spatial separation of state- and size-selected neutral clusters
Sebastian Trippel, Yuan-Pin Chang, Stephan Stern +3
We demonstrate the spatial separation of the prototypical indole(H2O) clusters from the various species present in the supersonic expansion of mixtures of indole and water. The maj…