Interference effects on (e, 2e) electron momentum profiles of CF4.

Area of Science:

• Quantum Chemistry
• Molecular Spectroscopy
• Electron Momentum Spectroscopy

Background:

• Electron momentum profiles offer insights into molecular electronic structure.
• Understanding molecular orbitals is crucial for predicting chemical properties and reactivity.
• Carbon tetrafluoride (CF4) is a molecule with significant applications in various industries.

Purpose of the Study:

• To investigate interference effects on electron momentum profiles of CF(4).
• To analyze the electronic structure of the three outermost molecular orbitals in CF(4).
• To correlate observed oscillatory structures with molecular geometry and atomic orbital orientation.

Main Methods:

• Utilized binary (e, 2e) spectroscopy, a powerful technique for probing electron momentum distributions.
• Measured and analyzed spherically averaged electron momentum densities for CF(4).
• Focused on the F 2p nonbonding atomic orbitals within the outermost molecular orbitals.

Main Results:

• Observed distinct oscillatory structures in the electron momentum densities.
• These oscillations directly correlate with the internuclear distances between fluorine atoms.
• Demonstrated that the phase of these oscillations is dependent on the spatial orientation of the atomic orbitals.

Conclusions:

• Interference effects in electron momentum profiles are sensitive probes of molecular structure.
• The (e, 2e) technique provides detailed information on internuclear distances and orbital symmetry.
• Results enhance the understanding of electron distribution and bonding in fluorinated molecules.