Synthesis of some novel heteroarylene ethynylene polymers containing 1,10-phenanthroline in the polymer backbone

✍ Scribed by Mohamed Al-Higari; Eckhard Birckner; Bettina Heise; Elisabeth Klemm

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 174 KB
• Volume: 37
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(19991201)37:23<4442::aid-pola21>3.0.co;2-f

✦ Synopsis

Palladium-catalyzed polycondensation between 3,8-dibromo-1,10-phenanthroline and substituted phenyl-1,4-diacetylenes in the presence of diisopropylamine produced the soluble -conjugated poly(heteroarylene ethynylene)s 7a and 7b. The polymers were obtained in high yields (86 -92%) and had molecular weights of M n ϭ 8700 g ⅐ mol Ϫ1 (7a; vapor pressure osmometry) and 6900 g ⅐ mol Ϫ1 (7b; vapor pressure osmometry). The low molecular model compounds 6a and 6b were prepared to analyze the connection between the primary structure and spectroscopic properties.