Abstract
AbstractAryldiphenylarsines, diarylphenylarsines, and triarylarsines were synthesized by practical methods to utilize the heavy atom effect for phosphorescence. 1‐Naphthyl, 2‐naphthyl, 9‐phenanthryl, and 1‐pyrenyl groups were introduced in the present work. The obtained arene‐substituted arsines showed phosphorescence in solutions at 77 K. On the other hand, 1‐pyrenyl‐substituted arsines showed only fluorescence in the solid states at 77 K, whereas the others exhibited phosphorescence. In addition, oxidation of the arsenic atom promoted fluorescence instead of phosphorescence. X‐ray crystallography and computational calculations were conducted to understand the luminescence behaviors of the arene‐substituted arsines.
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