Lessons of the Do.X

Dornier, C.

doi:10.1017/s0368393100109009

Cited by 1 publication

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“…[7,8] As the aim is the creation of a new class of low-bandgap polymers, incorporation of strong electron donors and/or acceptors could be a promising avenue. [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] Indeed, 2,5-diketopyrrolo [3,4-c] pyrrole [24,25] and isoindigo, [26,27] known as high-performance pigments serve as important building blocks for NIR absorption. [28][29][30][31][32] Based on the properties of these chromophores, we focused on benzodifuranone (BDF) derivatives, which are known as high-performance pigment with quinoidal structure, as promising candidates for an electron-deficient unit.…”

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confidence: 99%

Donor‐Acceptor Type π‐Conjugated Copolymers Based on Soluble Benzodifuranone

Kimoto

Tajima

2014

Macromolecular Symposia

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Summary: We designed a soluble building block containing a backbone based on benzodifuranone (BDF), a high-performance pigment, to form a novel donor-acceptor type polymer. By attaching dodecylthienyl moiety to the less soluble BDF framework, the soluble BDF monomer was readily obtained and applied to Suzuki-Miyaura condensation with electron-rich carbazole moiety to form a new class of low-bandgap polymers. The structural characterization and estimation of the molecular weight of the target p-conjugated polymer (PCTBDF) was carried out by 1 H NMR spectroscopy and gel permeation chromatography. We determined its optical and electrochemical properties, investigating how they were affected by different molecular weights. The HOMO and LUMO energy levels were estimated to be typically -5.5 and -3.8 eV, respectively.

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