In the past ten years, inducing or enhancing chemical reactions with infrared pulse laser has become a new research field. The infrared laser photochemistry based on the multiphoton absorption is quite different from ...In the past ten years, inducing or enhancing chemical reactions with infrared pulse laser has become a new research field. The infrared laser photochemistry based on the multiphoton absorption is quite different from 'classical' thermochemistry, and hence some new problems have arised. The application of the method of laser photochemistry to salving those problems has broad prospect. And it is possible to synthesize some compounds which are difficult展开更多
In thermal chemical reaction, the dissociation processes of a molecule firstly happen on the bonds having the lowest energy. Generally, the occurrence of the infrared multiphoton dissociation tends to pass through the...In thermal chemical reaction, the dissociation processes of a molecule firstly happen on the bonds having the lowest energy. Generally, the occurrence of the infrared multiphoton dissociation tends to pass through the lowest energy channel. If a molecule has two or more low dissociation channels close in energy, the channel competition may occur. Their branching rate is dependent on the laser intensity to a certain extent and is the function of展开更多
In separation of <sup>13</sup>C isotope, one of the most interesting problems at the present is to seek new ways to improve the selectivity of multi-photon dissociation （MPD） and to increase the efficien...In separation of <sup>13</sup>C isotope, one of the most interesting problems at the present is to seek new ways to improve the selectivity of multi-photon dissociation （MPD） and to increase the efficiency of MPD. We have reported for the first time that using a simple approach enables us to obtain a multi-frequency radiation of the展开更多
文摘In the past ten years, inducing or enhancing chemical reactions with infrared pulse laser has become a new research field. The infrared laser photochemistry based on the multiphoton absorption is quite different from 'classical' thermochemistry, and hence some new problems have arised. The application of the method of laser photochemistry to salving those problems has broad prospect. And it is possible to synthesize some compounds which are difficult
文摘In thermal chemical reaction, the dissociation processes of a molecule firstly happen on the bonds having the lowest energy. Generally, the occurrence of the infrared multiphoton dissociation tends to pass through the lowest energy channel. If a molecule has two or more low dissociation channels close in energy, the channel competition may occur. Their branching rate is dependent on the laser intensity to a certain extent and is the function of
基金Project supported by the National Natural Science Foundation of China.
文摘In separation of <sup>13</sup>C isotope, one of the most interesting problems at the present is to seek new ways to improve the selectivity of multi-photon dissociation （MPD） and to increase the efficiency of MPD. We have reported for the first time that using a simple approach enables us to obtain a multi-frequency radiation of the
