The mass spectra from the SF6 molecule acquired by energy-resolved electron ion coincidence (EREICO) technique using (1t1g + [5t1u,1t2u]), (3eg + 1t2g), 4t1u, and 5a1g electrons after both valence and S 2p-1 6a1g core excitation reveal a strong selectivity in the dissociation from these states. From the comparison of the obtained spectra, the influence of the core-excited state in the relaxation pathway of the molecule is studied. The S 2p -> 6a1g core excitation does not affect the relaxation dynamics after participator Auger decay to the (1t1g + [5t1u,1t2u])-1 and (4t1u)-1 states, but it alters the relaxation dynamics after participator Auger decay to the (3eg + 1t2g)-1 and (5a1g)-1 states with respect to the decay processes after direct excitation of the same orbitals. These observations point to core excitation induced dissociation in the SF6 molecule.
Relaxation dynamics of SF6 studied by energy-resolved electron ion coincidence technique
2004-01-01
Abstract
The mass spectra from the SF6 molecule acquired by energy-resolved electron ion coincidence (EREICO) technique using (1t1g + [5t1u,1t2u]), (3eg + 1t2g), 4t1u, and 5a1g electrons after both valence and S 2p-1 6a1g core excitation reveal a strong selectivity in the dissociation from these states. From the comparison of the obtained spectra, the influence of the core-excited state in the relaxation pathway of the molecule is studied. The S 2p -> 6a1g core excitation does not affect the relaxation dynamics after participator Auger decay to the (1t1g + [5t1u,1t2u])-1 and (4t1u)-1 states, but it alters the relaxation dynamics after participator Auger decay to the (3eg + 1t2g)-1 and (5a1g)-1 states with respect to the decay processes after direct excitation of the same orbitals. These observations point to core excitation induced dissociation in the SF6 molecule.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
