The orbital in a molecule that has the lowest unoccupied energy level at the absolute zero of temperature. The lowest unoccupied molecular orbital and the highest occupied molecular orbital(HOMO) are the two frontier orbitals of the molecule.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。