177415-97-3Relevant academic research and scientific papers
Electropolymerization of bithienyl-appended cerium(III) triple decker porphyrin complex
Yamashita, Kousei,Ikeda, Masato,Takeuchi, Masayuki,Shinkai, Seiji
, p. 264 - 265 (2003)
A cerium(III) triple decker porphyrin complex bearing bithienyl substituents (1) at the peripheral meso-positions was synthesized. Electrochemical polymerization of the triple decker porphyrin gave a unique polymer film on the ITO electrode surface without decomposition.
Syntheses and Properties of Unsymmetrically Substituted Bi- and Ouaterthiophenes
Higuchi, Hiroyuki,Uraki, Yoshiyuki,Yokota, Hiroki,Koyama, Haruki,Ojima, Juro,Wada, Tatsuo,Sasabe, Hiroyuki
, p. 483 - 495 (2007/10/03)
The unsymmetrically substituted bi- and quaterthiophene derivatives were synthesized. The unsymmetrically substituted bithiophenes carrying the electron-withdrawing substituent X on one of the outer thiophene rings exhibited the maxima of absorption bands at the longer wavelengths than the symmetrically disubstituted bithiophene derivatives, while the unsymmetrical quaterthiophenes had such maxima at the shorter wavelengths than the corresponding symmetrical ones. The trend of bathochromic shift of the longest wavelength absorption bands due to the electron-withdrawing substituent X was more pronounced in case of bi- or quaterthiophenes bearing push-pull substituents. The unsymmetrical quaterthiophenes exhibited the greater third-order nonlinear optical (TNLO) properties than the corresponding bithiophenes, similarly to the case between the symmetrical bi- and quaterthiophenes. However, the TNLO properties of the unsymmetrical biand quaterthiophenes showed no dependence on the electron-withdrawing strength of the substituent X, unlike those of the symmetrical ones.
