The synthesis of piperazine-containing carbazole derivate and its sensing performance to proton was written by He, Yi;Li, Yan-mei. And the article was included in Fenzi Kexue Xuebao in 2011.Formula: C4H12Cl2N2 This article mentions the following:
A novel piperazine-containing carbazole derivative, N,N’-di[3-(N-carbazole)benzyl]-piperazine (DC-Pip) I, was designed and prepared The absorption and fluorescence maxima of DC-Pip were observed at 300 and 405 nm, resp. DC-Pip emits strong blue fluorescence and has a high quantum yield (ΦF = 0.94) in solution, which indicates that DC-Pip can be used as fluorescence emitting materials. The effect of pH on the fluorescence characteristics of DC-Pip in H2O/DMF (4:1, V/V) solution has also been investigated, the intensity of fluorescence decreases with the decrease of pH value, these results shows that DC-Pip offers potential as optical sensor for protons. In the experiment, the researchers used many compounds, for example, Piperazine Dihydrochloride (cas: 142-64-3Formula: C4H12Cl2N2).
Piperazine Dihydrochloride (cas: 142-64-3) belongs to piperazine derivatives. Piperazine is a fairly basic compound and is an amine solvent. Piperazines are very broad chemical group, covering a wide range of drugs from antidepressants to antihistamines. The connecting property of all these chemicals is the presence of a piperazine functional group.Formula: C4H12Cl2N2
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics