S-21
 
  O=C(N(C(CCCCCCCCCC)CCCCCCCCCC)C7=O)C2=CC=C(C4=CC=C6C5=C(C(N(C(CCCCCCCCCC)CCCCCCCCCC)C6=O)=O)C=CC3=C45)C1=C3C=CC7=C12

N,N‘-Bis(1-decylundecyl)-3,4:9,10-perylenebis(dicarboximide); 2,9-bis-(1-decylundecyl)anthra[2,1,9-def;6,5,10-d‘e‘f‘]diisoquinoline-1,3,8,10(2H,9H)-tetraone; 2,9-bis-(11-heneicosanyl)anthra[2,1,9-def;6,5,10-d‘e‘f‘]diisoquinoline-1,3,8,10(2H,9H)-tetraone, RN 130350-24-2:
M.p. 95C, red crystals. UV (CHCl3): λmax (ε) = 468 nm (18350), 489 (50780), 525 (84890). C66H94N2O4 (978.8) calcd. C 80.93, H 9.76, N 2.86; found C 81.061, H 9.64, N 2.84.


References, RN 130350-24-2:

*1. Langhals, H.; Demmig, S.; Potrawa, T. ‘The relation between packing effects and solid state fluorescence of dyes’, J. Prakt. Chem. (Leipzig) 1991, 333, 733-748.

2. Kaiser, H.; Lindner, J.; Langhals, H. ‘Synthesis of nonsymmetrically substituted perylene fluorescent dyes’, Chem. Ber. 1991, 124, 529-535.

3. Langhals, H.; Demmig, S. ‘Perylene dyes and their use as permanent toner in electrophotography and laser printing’, Ger. Offen. 1991, DE 4007618 A1 19910912.

4. Langhals, H.; Kaiser, H. ‘Asymmetric perylene fluorescent dyes and pigments, their preparation and use’, Ger. Offen. 1991, DE 4018830 A1 19911219.

5. Schott, H.; von Cunow, D.; Langhals, H ‘Labeling of liposomes with intercalating perylene fluorescent dyes’, Biochim. Biophys. Acta, Biomembranes 1992, 1110, 151-157.

6. Langhals, H. ‘Preparation of high-purity perylene-3,4,9,10-tetracarboxylic acid 3,4-anhydride 9,10-imides’, Ger. Offen. 1995, DE 4421347 A1 19951221.

7. Langhals, H. ‘Perylene amidine imide dyes, their preparation and their use’, Ger. Offen. 1995, DE 4327273 A1 19950216.

8. Hartnett, P. E.; Dyar, S. M.; Margulies, E. A.; Shoer, L. E.; Cook, A. W.; Eaton, S. W.; Marks, T. J.; Wasielewski, M. R. ‘Long-lived charge carrier generation in ordered films of a covalent perylenediimide-diketopyrrolopyrrole-perylenediimide molecule’, Chemical Science 2015, 6, 402-411.


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