Chemistry is traditionally divided into organic and inorganic chemistry. COA of Formula: C51H42O3Pd2, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 52409-22-0
Bi-diketopyrrolopyrrole (Bi-DPP) as a novel electron accepting compound in low band gap pi-conjugated donor-acceptor copolymers/oligomers
The synthesis and characterization of a novel 2,5-diketopyrrolo[3,4-c]pyrrole(DPP)-based accepting building block with the scheme DPP-neutral small linker-DPP (Bi-DPP) is presented, which was utilized as electron accepting moiety for low band gap pi-conjugated donor-acceptor copolymers as well as for a donor-acceptor small molecule. The electron accepting moiety Bi-DPP was prepared via a novel synthetic pathway by building up two DPP moieties step by step simultaneously starting from a neutral phenyl core unit. Characterization of the synthesized oligomeric and polymeric materials via cyclic voltammetry afford LUMO energy levels from -3.49 to -3.59 eV as well as HOMO energy levels from -5.07 to -5.34 eV resulting in low energy band gaps from 1.52 to 1.81 eV. Spin coating of the prepared donor-acceptor oligomers/polymers resulted in well-defined films. Moreover, UV-vis measurements of the investigated donor-acceptor systems showed a broad absorption over the whole visible region. It is demonstrated that Bi-DPP as an electron accepting moiety in donor-acceptor systems offer potential properties for organic solar cell devices.
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Reference：
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method