International Journal of Spectroscopy / 2010 / Article / Tab 1 / Research Article
Styrylpyrylium Salts:
1
H
and
1
3
C
NMR High-Resolution Spectroscopy (1D and 2D) Table 1 1 H NMR (600 MHz) data: chemical shifts
in ppm as unit of measurement; multiplicity and constant coupling J given in Hz for four styrylpyrylium salts
1 ,
2 ,
3 and
4 .
Compounds
(multiplicity); J1 2 3 4 H3 8.92 (s) — 9.02 (s) — H5 9.17 (s) 8.80 (s) 8.52 (s) H7 7.70 (d); 16.2 7.87–7.77 (m) 7.81 (d) 7.72–7.77 (m) H8 8.70 (d); 16.2 8.72 (d); 15.9 8.48 (d); 16.2 8.37 (d); 16.2 H10 7.84–7.88 (m) 8.02–8.13 (m) 7.96 (t); 3.6 and 4.2 7.80 (t); 4.2 and 3 H11 7.84–7.88 (m) 7.62–7.64 (m) 7.60 (m) 7.56 (m) H12 7.62 (m) 7.62–7.64 (m) 7.60 (m) 7.56 (m) H14 8.44 (d); 7.8 8.02–8.13 (m) 8.61 (d); 7.2 8.08 (d); 7.2 H15 7.79 (t); 7.8 7.87–7.77 (m) 7.85 (t); 7.2 and 7.2 7.72–7.77 (m) H16 7.62 (m) 7.87–7.77 (m) 7.76–7.79 (m) 7.72–7.77 (m) H18 8.44 (d); 7.8 8.42 (d); 8.4 8.44 (d); 7.2 7.89–7.91 (m) H19 7.79 (t); 7.8 7.87–7.77 (m) 7.76–7.79 (m) 7.72–7.77 (m) H20 7.62 (m) 7.87–7.77 (m) 7.76–7.79 7.72–7.77 (m) H21 — 2.67 (s) — 1.90 (s)
(m: massif; t: triplet; d: doublet; s: singlet).
