202602-09-3Relevant academic research and scientific papers
New acceptor-π-porphyrin-π-acceptor systems for solution-processed small molecule organic solar cells
Arrechea, Susana,Molina-Ontoria, Agustín,Aljarilla, Ana,De La Cruz, Pilar,Langa, Fernando,Echegoyen, Luis
, p. 109 - 117 (2015)
Two new conjugated acceptor-donor-acceptor (A-π-D-π-A) compounds having a Zn-porphyrin acting as donor and linked by ethynylenes to one or two units of thienylenevinylene and capped by dicyanovinylene groups as acceptor units have been synthesized and the
Synthesis and binding properties of arylethyne-linked porphyrin-zinc complexes for organic electronics applications
Reainthippayasakul,Paosawatyanyong,Bhanthumnavin
, p. 3617 - 3621 (2013/06/05)
Conjugated meso-alkynyl 5,15-dimesitylporphyrin metal complexes have been synthesized by Sonogashira coupling reaction in good yields. Alkynyl groups were chosen as a link at the meso positions in order to extend the π-conjugated length of porphyrin rings. These synthesized porphyrin derivatives were characterized by 1H NMR spectroscopy and MALDI-TOF mass spectrometry. Moreover, UV-visible spectroscopy and fluorescence spectroscopy were also used to investigate their photophysical properties. It has been demonstrated that central metal ions as well as meso substituents on porphyrin rings affected the electronic absorption and emission spectra of the compounds. Spectroscopic results revealed that alkyne-linked porphyrin metal complexes showed higher π-conjugation compared with porphyrin building blocks resulting in red shifts in both absorption and emission spectra. Coordination properties of synthesized porphyrins were preliminarily investigated by UV-visible absorption and fluorescence emission spectroscopic titration with pyridine as axial ligand. The formation of porphyrin-pyridine complexes resulted in significant red shifts in absorption spectra and decrease of fluorescence intensity in emission spectra. Moreover, the 1H NMR titration experiments suggested that central metal ions play an important role to coordinate with pyridine and the coordination of porphyrin zinc(II) complex with pyridine occur in a 1:1 ratio. From these spectroscopic results, alkyne-linked porphyrin metal complexes offer potential applications as materials for optical organic nanosensors. Copyright
Synthesis of soluble conjugated metalloporphyrin polymers with tunable electronic properties
Jiang, Biwang,Yang, Szu-Wei,Barbini, Denis C.,Jones Jr., Wayne E.
, p. 213 - 214 (2007/10/03)
New linear conjugated porphyrin polymers are synthesized by a palladium-catalyzed cross-coupling reaction of [5,15-bis(ethynyl)-10,20-bis(mesityl)porphyrin]zinc and diiodobenzene derivatives; enhanced solubility of the conjugated porphyrin polymers is ach
