Non-protected fluid room temperature phosphorescence of several naphthalene derivatives.
In our previous work, we reported that with TlNO(3) as a heavy atom perturber and Na(2)SO(3) as a deoxygenator, room temperature phosphorescence (RTP) emission of dansyl chloride and its amino acid derivatives can be induced directly from their aqueous solution without a protective medium. Is this kind of fluid luminescence phenomenon unique for the dansyl chloride compounds? The present work has shown that many naphthalene derivatives can also exhibit RTP emission in their aqueous solutions under similar conditions in the absence of a protective medium. Such an RTP emission phenomenon could be denoted as nonprotected fluid room temperature phosphorescence (NP-RTP). In order to further understand this new luminescence phenomenon, the substituent group effects and the favorable chemical structure of compounds for NP-RTP emissions are discussed in detail.
Li
L
L
Department of Chemistry, Tsinghua University, Beijing 100084, China.
Zhao
Y
Y
Wu
Y
Y
Tong
A
A