《Table 1 Relative energy of U2mPz3 (m=Ⅳ, Ⅲ) complexes in various configurations (staggered-eclipsed

《Table 1 Relative energy of U2mPz3 (m=Ⅳ, Ⅲ) complexes in various configurations (staggered-eclipsed   提示:宽带有限、当前游客访问压缩模式
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《双层三明治四聚吡咯铀配合物的结构设计和稳定性理论计算》


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a.The difference of energies between each state and the lowest-energy state,i.e.,the energy in the se-quintet state for UⅣ2Pz3was set as zero,and that in the es-quintet state zero for UⅢ2Pz3;b.the stable structure in the triplet state was not obtained

对于U(Ⅲ)配合物,其U—U键长在0.339~0.355 nm范围内(表3),比四价配合物的短0.01 nm左右.对比表2和表3可见,U2mPz3-es(m=Ⅳ,Ⅲ)构型单重态的U—U键长最短,分别为0.350和0.339 nm.而对于U—N和U—N4,则是单重态se构型最短,说明U与N之间的作用较其它电子态和构型的要强.