The role of spin states of dimethylgermylene in photoinduced processes

A joint consideration of the previous references and our own data has pointed to the possibility of the appearance of both S0 and T1 spin states of Me2Ge: in photoinduced processes. The absorption band at 430 nm should be attributed to the ground S0 state of Me2Ge:, and the absorption band at 480 nm should relate to the excited T1 state of Me2Ge:. In addition, the rate constants of addition to multiple bonds amount to 104–107 M−1 s−1 for the singlet particles and ∼1010 M−1 s−1 (diffusion controlled) for the triplet particles, respectively.