... s: singlet; d: doublet; dd: double doublet; t: triplet. Peaks indicated by the same character may be interchanged. Page 4. Recueil des Travaux Chimiques des Pays-Bas, 10614, April 1987 Table Ill "C Chemical sh@s (75 MHz, CDCI,) 6 (ppm) of pyrene. 1, 2 and 3. ...
[Braken-van Leersum, A. M. van den; Tintel, C.; Zelfde, M. van't; Cornelisse, J.; Lugtenburg, J. Recueil des Travaux Chimiques des Pays-Bas, 1987 , vol. 106, # 4 p. 120 - 128]