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13C and 19F NMR spectra of a series of laterally fluorinated mesogens

✍ Scribed by Christa Loubser

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
239 KB
Volume
32
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^13^C and ^19^F NMR spectra of a series of mesogenic compounds, (S)‐4‐n‐octyloxy‐fluorobiphenyl‐4′‐yl fluoro‐4‐(2‐fluoro‐octanoyloxy)benzoates, were determined in solution. The effect of fluoro substitution in various positions on the ^13^C and ^19^F chemical shifts was studied. ^13^C, ^19^F and ^19^F, ^19^F scalar coupling constants are given.

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The positions of the chemical shifts in the table match those of the carbon atoms at the head of a column. Assignments with similar chemical shifts may be interchanged. Fourth signal not resolved. Signals superimposed.