《Excimer formation of aryl iodides chemisorbed on gold nanoparticles for the significant enhancement of photoluminescence》 was published in Journal of Physical Chemistry Letters in 2020. These research results belong to Maity, Prasenjit; Sasai, Kenji; Dhital, Raghu Nath; Sakai, Hayato; Hasobe, Taku; Sakurai, Hidehiro. Quality Control of 4-Iodobenzoic acid The article mentions the following:
The photoluminescence properties of aryl iodides chemisorbed on gold nanoparticles were examined Chemisorption of a series of aryl iodides onto poly(N-vinylpyrrolidone)-protected Au nanoparticles (Au:PVP) in solution resulted in highly enhanced luminescence. Kinetic studies revealed that the photoluminescence is derived from the excimer formation of aryl iodides on Au:PVP, and the process is significantly faster than intersystem crossing by the heavy atom. After reading the article, we found that the author used 4-Iodobenzoic acid(cas: 619-58-9Quality Control of 4-Iodobenzoic acid)
4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Quality Control of 4-Iodobenzoic acid Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com