New fluorosulfonyl-containing monomers/polymers

Fluorinated [beta]-sultones as Precursors to Fluorinated Sulfonic Acids, and New Fluorosulfonyl Containing Monomers/Polymers

“…In all cases these assignments are in excellent agreement with literature values(19,20,22). NMR SPECTRA The nmr chemical shifts and coupling constants for the monojbis ,8-sultones and all of their derivatives are shown in Tables VIII through XI and the spectra are reproduced in the appendix.…”

“…In the silver salt, FS02CF 2 C(O)OAg, the carbonyl frequency is found at 1708 cm-1; while in CF3COOAg, this stretching frequency is located at 1720 cm-1 ( 60) .In all sulfonyl fluoride esters, as well as the silver salt, the asymmetric and symmetric S02 stretching frequencies are assigned to the 1427-1469 cm-1 region and 1209-1259 cm-1 region, respectively. The above assignment for the S02 group agrees closely with that found for other fluorosulfuryl derivatives(19,20,22). The intense S-F absorption band is located, as expected, near the 800 cm-1 region(19,20,22).…”

“…data for all fluorinated esters containing the sulfonyl fluoride group are shown in the experimental section, and the spectra are also shown in the appendix.These sulfonyl fluoride esters have several features in common: the stretching frequency for the carbonyl group adjacent to CF2 is found in the 1785-1834 cm-1 region; for the carbonyl group next to the CH 2 group the corresponding frequency is located at 1757 cm-1. These values are in good agreement with other fluorinated esters(19,22,57,58,59). In the silver salt, FS02CF 2 C(O)OAg, the carbonyl frequency is found at 1708 cm-1; while in CF3COOAg, this stretching frequency is located at 1720 cm-1 ( 60) .In all sulfonyl fluoride esters, as well as the silver salt, the asymmetric and symmetric S02 stretching frequencies are assigned to the 1427-1469 cm-1 region and 1209-1259 cm-1 region, respectively.…”

“…The above assignment for the S02 group agrees closely with that found for other fluorosulfuryl derivatives(19,20,22). The intense S-F absorption band is located, as expected, near the 800 cm-1 region(19,20,22). For compounds containing a C-F group and a CF 3 group, the C-F stretching vibration is usually located in the 1000-1200 cm-1 region while marked absorption in the range 1230-1390 cm-1 can be correlated with the CF 3 group(61).…”

New acrylate systems: derivatives of β-SF5-acrylic acid

“…The J SF5-CH cis coupling values are near 0 or absent for SF 5 CH¼CH 2 [17], SF 5 CBr¼ CHCl [19], SF 5 CH¼CHCl [18], SF 5 CH¼CHOCH 3 [18], SF 5 CBr¼CHBr [20], SF 5 CCl¼CH 2 [21] and SF 5 CBr¼ CHCl [16]. Also of interest is the J SF5-CH trans interaction; for SF 5 CH¼CH 2 [17], SF 5 CH¼CHOCH 3 [18], SF 5 CBr¼ CHBr [20], and SF 5 CCl¼CH 2 [21], and trans-SF 5 CBr¼CHCl [19] the coupling values are 2.3, 3, 3.0, 3.3 and 2.2 Hz, respectively. It is clear from our data that all new compounds (1-3) have SF 5 CH¼ arrangement based on the values for the geminal coupling.…”