Rational design of a fluorescent poly(N-aryleneindole ether sulfone) switch by cation-π interactions was written by Chang, Guanjun;Yang, Li;Liu, Shenye;Lin, Runxiong;You, Jingsong. And the article was included in Polymer Chemistry in 2015.Related Products of 628-13-7 This article mentions the following:
Semirigid poly(N-aryleneindole ether sulfone) (PESIN) as a fluorescence emission on-off switch has been successfully achieved via the cation-π interactions. The adjustment of the protonation/deprotonation status of pyridine that regulates the formation of cation-π interactions is definitely the determinant. In the experiment, the researchers used many compounds, for example, Pyridinehydrochloride (cas: 628-13-7Related Products of 628-13-7).
Pyridinehydrochloride (cas: 628-13-7) belongs to pyridine derivatives. Pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJ·mol−1 in pyridine vs. 150 kJ·mol−1 in benzene). One of the examples of pyridines is the well-known alkaloid lithoprimidine, which is an A3 adenosine receptor antagonist and N,N-dimethylaminopyridine (DMAP) analog, commonly used in organic synthesis.Related Products of 628-13-7