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JKRMS Volume 28, No 4, pp 38, H-D exchange of pyrrolic NH prot...
2024년 12월 20일 / 조회수: 204

H-D exchange of pyrrolic NH protons prompted by fluoride in aprotic DMSO-d6

 

 

Sung Kuk Kim*

 

 

Department of Chemistry and Research Institute of Natural Science,

Gyeongsang National University, Jinju 52828, Republic of Korea

 

 

 

 

Received Nov 12, 2024; Revised Nov 27, 2024; Accepted Nov 28, 2024

 


Abstract The binding feature of bipyrrole-strapped calix[4]pyrrole 1 for the fluoride anion was examined by a combination of 1H and 19F NMR spectroscopy in DMSO-d6 . Receptor 1 was found to bind the fluoride anion with high affinity via two step-process. Fluoride binding to receptor 1 was proved to facilitate deuterium exchange of the pyrrolic protons in the nominally aprotic deuterated solvent of DMSO-d6.

 

Keywords Fluoride, deuterium exchange, anion receptor, calix[4]pyrrole, aprotic solvent

 

* Address correspondence to: Sung Kuk Kim, Department of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea. Tel: 82-55-772-1494; E-mail: sungkukkim@gnu.ac.kr

첨부파일 2. JKMRS_KimSK_pp38-43.pdf