Morpholino phenyl amino ketones

Figure 3.84. Voxel obtained by irradiation of a mixed urethane acrylate oligomer and a urethane acrylate monomer in the presence of a mixture of benzoyl cyclohexanol and morpholino phenyl amino ketones at 780 nm using a 150-fs pulsed Ti sapphire mode-locked laser operating at 76 MHz, where light was focused by a 1.4 numerical aperture objective lens (a) scanning electronic microscopic images of the voxel and (b) longitudinal and lateral voxel size as function of the exposure time. (From Ref. [580] with permission of the American Institute of Physics.)...

The carbonyl group contained in the initiators that were used, a mixture of benzoyl cyclohexanol and morpholino phenyl amino ketones (inset of Fig. 13a), exhibits two kinds of triplet states nn and nn. However, according to selection rules of electronic transition, transitions are symmetry forbidden and transition are symmetry allowed. Therefore the... 

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See also in sourсe #XX -- [ ]

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