Rotational barriers in perylene fluorescent dyes
نویسنده
چکیده
l.OOg (2.55 mol) ~rylen~tetracarboxyli~-3,4:9,10-bisanhydride and 0.69 g (6.0mol) 3-heptylamine give 1.01 g (67%). --m.p. > 360”C-R, (silica gel/CHCl,)=0.40.-i.r. (KBr): v=2959cm-‘s, 2931s, 2872m, 1698s, 1658s, 1594s, 1579s, 1508w, 1485w, 1460m, 1435m, 1406s, 1380m, 1338s, 1253s, t209m, 1193m, 1177w, 112Sw, 1097m, 962~. 94Ow, 852m, 81Os, 792w, 783w, 747s, 617w.-u.v-vis (CHCI,): 1 nlax (&)=457nm(18480), 488(50650), 524.5(83860).-u.v.vis (n-heptane): i,,, (e)=448 nm(19270), 478(52720), 513.5(895OOt-_-Fluorescence (CHCI,): A,,,,,= 536 nm, 575--Fluorescence (heptane): i,,, =519 nm, 559--‘H-NMR [CDCI,): 6 = 0.95(m. 12H), 1.33(m, 8H). 2.1O(m,8H), S.O8(m, 2H), 8.42(q, 8H)-C,sH3,N,0, (586.7) calcd. Cl7.79H6.53N4.77 found C77.51H6.56N4.65.
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