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在液相体系中,激光诱导化学反应或其它激光效应已经引起人们广泛的注意。这不仅由于它在理论上有助于进一步理解激光与物质间相互作用过程的机理,而且在实际应用上也有广阔前景。 本文用TEACO_2激光研究了在红外共振光线作用下,铀从水溶液中(水相)进入磷酸三丁酯等有机溶剂中(有机相)萃取化学平衡的变化。实验结果表明,当TEACO_2激光频率调谐到和铀铣离子在它与磷酸三丁酯等有机溶剂所形成的络合物中的反对称振动频率相一致时,铀的萃取平衡分配系数可增加50％。在同样条件下,用其它非共振的TEACO_2激光频率照射时,上述体系铀的萃取平衡分配系数不变。这种激光效应可以用有关络合物的价键理论给予
In liquid systems, laser-induced chemical reactions or other laser effects have drawn much attention. This is not only because it is theoretically helpful to further understand the mechanism of the interaction between laser and matter, but also has broad prospects in practical application. In this paper, the change of extraction chemical equilibrium of uranium (organic phase) from aqueous solution (aqueous phase) to tributyl phosphate (organic phase) under the condition of infrared resonance light was studied by TEACO_2 laser. The experimental results show that when the TEACO_2 laser frequency is tuned to match the anti-symmetric vibrational frequency of uranium milling ions in complex with organic solvents such as tributyl phosphate, the extraction equilibrium partition coefficient of uranium can be increased by 50% . Under the same conditions, with other non-resonant TEACO_2 laser frequency irradiation, the above system uranium extraction equilibrium partition coefficient unchanged. This laser effect can be given using the theory of the valence bond of the complex