Spectroscopic study of cyclen-based F NMR probe for detection of hydrogen sulfide.

A cyclen-based F NMR probe (F-cyclen) for hydrogen sulfide (HS) has been prepared and evaluated for its complex formation ability with Cu ions and responsivity to HS. F-Cyclen was readily synthesized by reacting cyclen with 4-(trifluoromethyl)benzyl bromide. Visible absorption spectrophotometry showed that, same as the original cyclen, F-cyclen formed a 1:1 complex with Cu ions.