574. Some new mesoionic compounds
β Scribed by Lawson, Alexander ;Miles, D. H.
- Book ID
- 121356164
- Publisher
- The Royal Society of Chemistry
- Year
- 1959
- Weight
- 808 KB
- Category
- Article
- ISSN
- 0368-1769
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π SIMILAR VOLUMES
The nonlinear absorption of new mesoionic compounds (MIC) was investigated using nanosecond laser pulses with wavelengths at 570, 605 and 618 nm. Nonlinear absorption cross-sections, r 2 % 10 Γ45 cm 4 s/photon, larger than any recorded in the literature, were obtained due to the introduction of p-CF
H, 13C, "N and "N NMR data are reported for two 1,2,3,4-oxatriazolium-!+thiolates and for two 1,2,3,4 thiatriazolium-5-olates. It is demonstrated that nitrogen NMR is the most sensitive technique for determining the structures of these mesoionic compounds; of particular significance is the N-2 chemi