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采用醋酸铀酰为原料在气相中制备了HOUO2OH负离子,在一定条件下再与O2反应,从而制备了UO5负离子,并采用串联质谱法对UO5进行了表征,考察了生成条件对制备UO5负离子的影响.初步实验表明在不同能量作用下UO5负离子能释放出O2.探讨了气相中负离子与分子反应生成UO5负离子的可能机理,指出通过调控分子与离子的碰撞时间和碰撞能量可以控制离子的电子活动半径,合适的能量可使电子云的半径落在rinert≤reactive≤rdecomposition之间,从而促进某些化学反应的进行,以合成某些通常状况下难以生成的物质.
The uranium acetate was used as raw material to prepare HOUO2OH anion in the gas phase, and reacted with O2 under certain conditions to prepare UO5 anion. The UO5 anion was characterized by tandem mass spectrometry. The effect of formation conditions on the production of UO5 anion was investigated .The preliminary experiments show that the UO5 anion can release O2 under the different energy.It is discussed that the reaction mechanism between anion and molecule in the gas phase to generate UO5 anion.It is pointed out that the electron activity radius can be controlled by adjusting the collision time and collision energy between molecule and ion , The proper energy can make the radius of electron cloud fall between rinert≤reactive≤rdecomposition, so as to promote the progress of some chemical reactions to synthesize some substances which are difficult to be generated under normal conditions.