More than half the elements are metals in which close-packed arrays of atoms are held together by delocalized electrons. 半数以上的元素是金属,在金属中原子依靠离位的电子紧密结合在一起。
Highly reactive and delocalized electrons would react with photons. 高度活性和非定域的电子应该能够与光子起反应。
The molecular nature of POMs and conjugated organic molecules offers the opportunity to generate covalently bonded molecular hybrids where the interplay between cluster d electrons and organic delocalized π-electrons can be explored at the molecular level. 多金属氧酸盐分子再加上有机共轭分子,提供了组装共价连接的分子杂化材料的可能性,因为多金属氧酸盐的d电子和有机化合物的π电子可以在分子水平上相互作用。
The trap energy of the traps at band tails formed by the delocalized π electrons decreases after annealing, leading to the increase of leakage current due to field-enhanced thermal excitation of trapped electrons into the conduction band. 非定域π电子在带尾形成陷阱且陷阱能量在退火后降低,从而使更多陷阱电子在场增强热激发作用下进入导带并引起电流增大。