期刊
NATURE COMMUNICATIONS
卷 8, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms15849
关键词
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资金
- Australian Research Council (ARC) [DP110101894]
- ARC Centre for Coherent X-Ray Science [CE0561787]
- ARC [DE130101628]
- ARC Future Fellowship [FT110100513]
- NSF of China [11574205, 11322438, 11421064]
- Australian Research Council [DE130101628, CE0561787] Funding Source: Australian Research Council
Dissociation of diatomic molecules with odd number of electrons always causes the unpaired electron to localize on one of the two resulting atomic fragments. In the simplest diatomic molecule H-2(+) dissociation yields a hydrogen atom and a proton with the sole electron ending up on one of the two nuclei. That is equivalent to breaking of a chemical bond-the most fundamental chemical process. Here we observe such electron localization in real time by performing a pump-probe experiment. We demonstrate that in H-2(+) electron localization is complete in just 15 fs when the molecule's internuclear distance reaches 8 atomic units. The measurement is supported by a theoretical simulation based on numerical solution of the time-dependent Schrodinger equation. This observation advances our understanding of detailed dynamics of molecular dissociation.
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