Effective conjugation length and UV/vis spectra of oligomers

Acta Polymerica

Volumn 48, Issue 9, 1997, Pages 379-384

  Meier, H ^a   Stalmach, U ^a   Kolshorn, H ^a  

^a JOHANNES GUTENBERG UNIVERSITY   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ALGORITHMS; CHEMICAL BONDS; CONVERGENCE OF NUMERICAL METHODS; MOLECULAR STRUCTURE; ULTRAVIOLET SPECTROSCOPY;

EFFECTIVE CONJUGATION LENGTH; ULTRAVIOLET/VISIBLE SPECTROSCOPY;

OLIGOMERS;

EID: 0031222029     PISSN: 03237648     EISSN: None     Source Type: Journal    
DOI: 10.1002/actp.1997.010480905     Document Type: Article

References (42)

1. A selection of articles is given by the references [2-7].
2. H.-H. Hörhold, M. Heibig, D. Raabe, J. Opfermann, U. Scherf, R. Stockmann, D. Weiβ, Z Chem. 1987, 27, 126.
3. J.L. Brédas, R. Silbey, Conjugated Polymers, Kluvver, Dordrech 1991.
4. W.R. Salaneck, I. Lundström, B. Ranby, Conjugated Polymer and Related Materials, Oxford University Press, Oxford 1993.
5. K. Müllen, PureAppl. Cliem. 1993, 65, 89.
6. P. Bäuerle, Adv. Mater. 1993, 5, 879.
7. J.L. Brédas, Adv. Mater. 1995, 7, 263.
8. J.M. Tour, Chem. Rev. 1996, 96, 537
9. J.N. Murrell, Elektronenspektren organischer Moleküle, Bibliographisches Institut, Mannheim 1967, pp. 89 ff.
10. See also H. Kühn, / Chem. Phys. 1949, 17, 1198.
11. H. Meier, Angew. Chem. 1992, 104, 1425;
12. Angew. Chem.,Int Ed.Engl. 1992, 31, 1399.
13. H.-H. Hörhold, Z. Chem. 1972, 12, 41.
14. R. Schenk, H. Gregorius, K. Müllen, Adv. Mater. 1991, 3, 492.
15. R. Schenk, H. Gregorius, K. Meerholz, J. Heinze, K. Müllen J. Am. Chem. Soc. 1991, 113, 2634.
16. B. Tian, G. Zerbi, R. Schenk, K. Müllen, J. Chem. Phys. 1991 95, 3191.
17. M. Lang, H. Kretzschmann, H. Meier, Mol. Cryst. Liq. Cryst 1994, 253, 11.
18. H. Meier, H. Kretzschmann, M. Lang, W. Fraβ, C. Albrecht K. März, J. prakt. Chem. 1994, 336, 297.
19. U. Stalmach, H. Kolshom, I. Brehm, H. Meier, Liebigs Ann 1996, 1449.
20. See also D. Oelkrug, A. Tompert, H.-J. Egelhaaf, M. Hanack E. Steinhuber, M. Hohloch, H. Meier, U. Stalmach, Synth. Met 1996, 55, 231.
21. Prepared by the Wessling-Zimmerman method; see D. Ickenroth Diplomarbeit, Mainz, 1997.
22. K. Hirayama, J. Am. Chem. Soc. 1955, 77, 373.
23. G.N. Lewis, M. Calvin, Chem. Rev. 1939, 25, 273.
24. R.C. Johnson, in Pade Approximanls and Their Applications (Ed P.R. Graves-Morris), Academic, London 1973.
25. H.-P. Weitzel, A. Bohnen, K. Müllen, Makromol. Chem. 1990 797, 2815.
26. T. Geisler, J.C. Petersen, T. Bjornholm, E. Fischer, J. Larsen, C Dehu, J.L. Brédas, G.V. Tormos, P.N. Nugara, M.P. Cava, R.M Metzger, J. Phys. Chem. 1994, 98, 10102.
27. Since not all -2o->o values have been published for the oligomer 2-10, the A-4max values of the absorption maxima are used.
28. S. Matsuoka, H. Fujii, T. Yamada, C. Pac, A. Ishida, M. Taka muku, N. Nakashima, S. Kanagida, Y. Hashimoto, T. Sakata, J Phys. Chem. 1991, 95, 5802.
29. J. Grimme, M. Kreyenschmidt, F. Uckert, K. Müllen, U. Scherf Adv. Mater. 1995, 7, 292.
30. M. Kreyenschmidt, F. Uckert, K. Müllen, Macromolecitles 1995 28, 4577
31. H. Gregorius, W. Heitz, K. Müllen, Adv. Mater. 1993, 5, 279.
32. M.-T. Zhao, B.P. Singh, P.N. Prasad, J. Chem. Phys. 1988, 89 5535.
33. P. Bäuerle, T. Fisher, B. Bidlingmeier, A. Stabel, J.P. Rabe Angew. Chem. 1995, 707, 335; Angew. Chem.,Int. Ed. Engl 1995, 34, 303.
34. G. Zotti, S. Martina, G. Wegner, A.-D. Schlüter, Adv. Mater 1997, 4, 798
35. T. Kauffmann, H. Lexy, Chem. Ber. 1981, 114, 3674.
36. J.S. Schumm, D.L. Pearson, J.M. Tour, Angew. Chem. 1994, 106 1445;
37. Angew. Chem.,Int. Ed. Engl. 1994, 33, 1360.
38. I.D.W. Samuel, I. Ledoux, C. Delporte, D.L. Pearson, J.M. Tour Chem. Mater. 1996, 8, 819.
39. Besides UV/vis spectroscopy other spectroscopical methods ca be used for this purpose, for example vibrational, particularl Raman spectroscopy and the theory of the effective conjugatio coordinate. With the latter method an nECL of 8-10 was obtaine for the oligomers 7 [38]
40. B. Tian, G. Zerbi, K. Müllen, J. Chem. Phys. 1991, 95, 3198.
41. U. Stalmach, Dissertation, Mainz 1997.
42. The conformational possibilities in the series of the oligomers 1 were discussed in a previous paper: H. Kolshorn, H. Kretzsch mann, H. Meier, J. prakt. Chem. 1994, 336, 292.