Potential well depth Subject

The photochemical properties of organometallic compounds are investigated, but none to the depth to which metal-carbonyl complexes are subjected. Photosensitivity of the complexes often is cited, but there is little emphasis on synthetic utility. This section examines the synthetic potential of the photochemical transformations. Studies that are concerned solely with mechanistic aspects are excluded, as well as synthetic applications of the mixed compounds, such as h -CjHjCr(CO)3 and h -CjHjMnfCOjj, where the primary photochemical reaction is CO loss these are discussed in 13.2.4. 

Figure 2.12 (a) Approximation of periodic potential that an electron is subjected to in a one-dimensional crystal of periodicity a. Here u- is the width of the barrier, and Eq is the depth of the energy well. ( ) A plot of the right-hand side of Eq. (2.22) versus oa. The v axis is proportional to the energy of the electron, and the crosshatched areas denote energies that are permissible, whereas the energies between the crosshatched areas are not permissible. 

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