944330-98-7Relevant academic research and scientific papers
NARROW ABSORPTION POLYMER NANOPARTICLES AND RELATED METHODS
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Page/Page column 180, (2020/04/25)
Polymers, monomers, narrow-band absorbing polymers, narrow-band absorbing monomers, absorbing units, polymer dots, and related methods are provided. Bright, luminescent polymer nanoparticles with narrow-band absorptions are provided. Methods for synthesizing absorbing monomers, methods for synthesizing the polymers, preparation methods for forming the polymer nanoparticles, and applications for using the polymer nanoparticles are also provided.
RESIN COMPOSITION AND MOLDED ARTICLE
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Paragraph 0273, (2016/10/11)
The invention contains a resin and a near infrared fluorescent material which is one type or two or more types of compounds selected from General Formulas (I1) to (I4) and has a maximum fluorescence wavelength of 650 nm or longer. In Formulas, Ra and Rb, Rc and Rd, Rh and Ri, and Rj and Rk form rings together with the nitrogen atom to which Ra, Rc, Rh, and Rj are bonded; Re and Rf represent a halogen atom or an oxygen atom; each of Rl, Rm, Rn, and Ro independently represents a halogen atom, a C1-20 alkyl group, a C1-20 alkoxy group, an aryl group, or a heteroaryl group; Rg, Rr, and Rs represent a hydrogen atom or an electron withdrawing group; and each of Rp and Rq independently represents a hydrogen atom, a halogen atom, a C1-20 alkyl group, a C1-20 alkoxy group, an aryl group, or a heteroaryl group.
Pyrrolopyrrole cyanine dyes: A new class of near-Infrared dyes and fluorophores
Fischer, Georg M.,Isomaki-Krondahl, Magnus,Gottker-Schnetmann, Inigo,Daltrozzo, Ewald,Zumbusch, Andreas
supporting information; experimental part, p. 4857 - 4864 (2009/12/08)
Pyrrolopyrrole cyanine (PPCy) dyes are presented as a novel class of near-infrared (NIR) chromophores, which are synthesized in a condensation reaction of diketopyrrolopyr-role with heteroarylacetonitrile compounds. Their optical properties are marked by strong and narrow-band NIR absorptions. Complexation prod-ucts with BF2 and BPh2 show strong NIR fluorescence and hardly any ab-sorption in the visible range. We syn-thesized a series of new PPCys that differ only in the heterocyclic peripheral groups of the chromophore. With this strategy, the absorption spectra can be tuned between 684 and 864 nm, while high fluorescence quantum yields are maintained. The influence of the heterocycle on the optical properties of the dyes is discussed.
Near-infrared dyes and fluorophores based on diketopyrrolopyrroles
Fischer, Georg M.,Ehlers, Andreas P.,Zumbusch, Andreas,Daltrozzo, Ewald
, p. 3750 - 3753 (2008/02/14)
NIRly there: The chromophore of compounds with intramolecular H bonds have been rigidified by substitution of the protons of the N-H...N bridges by BR2 groups (R = F, Ph). This stiffening and the polymethine character of the chromophores afford
