Synthesis and photophysical properties of 1,3-di(oligothienyl)propane

✍ Scribed by Tadatake Sato; Haruhiro Ino; Mamoru Fujitsuka; Kazuyoshi Tanaka

• Publisher: Elsevier Science
• Year: 1997
• Tongue: French
• Weight: 257 KB
• Volume: 38
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(97)01355-5

✦ Synopsis

Three kinds of 1,3-di(oligothienyl)prolaanes were synthesized. Two of them are homogeneous directs composed of bithienyis or terthienyls and the third, a heterogeneous dimer in which bithienyl and teahienyl units are linked. It has been found that in the homogeneous dimers there is little electronic interaction between two oligothienyl units both in the ground and the singlet excited slates. On the other hand, it has become clear that in the heterogeneous dimer an effective energy transfer from the bithienyl to the terthienyl unit takes place.