| abstract |
Unlike a conventional photoacid generator, a compound capable of generating a Lewis acid by light is provided. The compound is composed of an anion portion having boron as a central atom and a specific cation portion (for example, a cation having a gap between HOMO-LUMO of 5.3 eV or less). The cation moiety may have a skeleton selected from, for example, an N-substituted pyridinium skeleton, an N-substituted bipyridinium skeleton, an N-substituted quinolinium, and a pyrylium skeleton. |