## Abstract The synthesis and the optical properties of the novel aryleneethynylenes (7, 8) and arylenebutadiynylenes (10, 11) using either a Heck‐type or a Hay‐type coupling are reported. The route reported here also makes __meta__‐linked arylene‐alkynylenes accessible. The number‐average degree o
Synthesis, characterization and electronic properties of some hetero-arylene vinylene oligomers
✍ Scribed by Johan F.A. Van Der Looy; Gerd J.H. Thys; Pieter E.M. Dieltiens; Daniël De Schrijver; Christian Van Alsenoy; Herman J. Geise
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- French
- Weight
- 855 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0040-4020
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✦ Synopsis
The synthesis and characterization is reported of six 2,5-distyryl-heteroarylenes (BXB compounds) and 1,4-bis{ 2-(heteroaryl-2-yl) ethenyl}benzenes (XBX compounds) containing the thienyl, furanyl or N-methylpyrryl as the heteroarylene moiety. By means of NMR and UVNis spectroscopy the electronic structure was probed. Quantum mechanical calculations using the semiempirical CNDO/S-CI approach rationalize the experimental findings and support the peak assignments.
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