Molecular electronic transition

Molecular electronic transition refers to a process in which a molecule absorbs or emits energy, resulting in a change in its electronic energy state. This typically occurs when electrons in certain molecular orbitals move from a lower energy state (such as a ground state) to a higher energy state (an excited state) or vice versa. These transitions are fundamental to understanding various phenomena in chemistry and physics, including spectroscopy, photochemistry, and the behavior of materials when exposed to light.