Synthesis of conjugated rigid-rod polyarylenes with (η4-cyclobutadiene)cobalt moieties in the main chain

Chemistry Letters

Volumn , Issue 5, 1997, Pages 477-478

  Rozhanskii, Igor L ^a   Tomita, Ikuyoshi ^a   Endo, Takeshi ^a  

^a TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0004811562     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1997.477     Document Type: Article

References (19)

1. For recent reviews, see: a) H.R. Allcock, Adv. Mater., 6, 106 (1994);
2. b) M. Biswas and A. Mukherjee, Adv. Polym. Sci., 115, 89 (1994);
3. c) L. Oriol and J.L. Serrano, Adv. Mater., 7, 348 (1995);
4. d) I. Manners, Angew. Chem., Int. Ed. Engl., 35, 1603 (1996).
5. a) T. Yamamoto, T. Maruyama, Z.H. Zhou, T. Ito, T. Fukuda, Y. Yoneda, F. Begum, T. Ikeda, S. Sasaki, H. Takezoe, A. Fukuda, and K. Kubota, J. Am. Chem. Soc., 116, 4832 (1994);
6. b) Z. Peng and L. Yu, J. Am. Chem. Soc., 118, 3777 (1996).
7. a) I. Tomita, A. Nishio, T. Igarashi, and T. Endo, Polym. Bull., 30, 179 (1993);
8. b) I. Tomita, A. Nishio, and T. Endo, T. Macromolecules, 27, 7009 (1994);
9. c) I.L. Rozhanskii, I. Tomita, and T. Endo, Macromolecules, 29, 1934 (1996);
10. d) I.L. Rozhanskii, I. Tomita, and T. Endo, Macromolecules, in press.
11. a) M. Altmann and U.H.F. Bunz, Macromol. Rapid. Commun., 15, 785 (1994);
12. b) M. Altmann and U.H.F. Bunz, Angew. Chem., Int. Ed. Engl. 34, 569 (1995).
13. M. Ballauff, Angew. Chem., Int. Ed. Engl., 28, 253 (1989).
14. H. Yamazaki and Y. Wakasuki, J. Organomet. Chem., 139, 157 (1977).
15. I.L. Rozhanskii, I. Tomita, and T. Endo, Liq. Crystals, 21, 631 (1996).
16. n is based on the retention times of the resolved peaks of oligomers (up to heptamer).
17. 4, main chain and side chain, meta to -OAlk).
18. max ≈ 280 nm may be attributed to an absorption of non-conjugated pendant phenoxy groups.
19. D. Demus and L. Richter, "Textures of Liquid Crystals", Verlag Chemie, Weinheim (1978).