F-19,C-13 CORRELATIONS IN A HIGHLY FLUORINATED ALKYL CHAIN AND COUPLING-CONSTANT SIGNS AT THE FLUOROCARBON HYDROCARBON INTERFACE/

The first F-19,C-13 HMQC correlations with full carbon decoupling and the first HMBC correlations using fluorine detection methods are repor ted, and combined with F-19-decoupled C-13 data and F-19, F-19 COSY an d TOCSY to derive the F-19 and C-13 assignments for the highly fluorin ated alkanol 8,8,8 7,7 6,6 5,5 4,4 3,3-tridecafluorooctan-1-ol. The an alyses of unique sets of multiple F-19,C-13 and H-1,C-13 cross peaks p rovides information about the relative signs of the coupling constants at the fluorocarbon/hydrocarbon interface.