Triplet state | 新北市拜拜好去處

Almostallmoleculesencounteredindailylifeexistinasingletstate,butmolecularoxygenisanexception....Atroomtemperature,O2existsinatripletstate,which ...

quantum state of a system

In quantum mechanics, a triplet is a quantum state of a system with a spin of quantum number s=1, such that there are three allowed values of the spin component, ms = −1, 0, and +1.

Spin, in the context of quantum mechanics, is not a mechanical rotation but a more abstract concept that characterizes a particles intrinsic angular momentum. It is particularly important for systems at atomic length scales, such as individual atoms, protons, or electrons.

Almost all molecules encountered in daily life exist in a singlet state, but molecular oxygen is an exception.[1] At room temperature, O2 exists in a triplet state, which can only undergo a chemical reaction by making the forbidden transition into a singlet state. This makes it kinetically nonreactive...