Relevant bibliographies by topics / P-type chromophores

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'P-type chromophores'

Author: Grafiati
Published: 9 March 2023
Last updated: 31 July 2025

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Journal articles on the topic "P-type chromophores"

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Lundquist, Knut, Jim Parkås, Magnus Paulsson, and Cyril Heitner. "Reactions of lignin chromophores of the enal and enone type with sulfite." BioResources 2, no. 3 (2007): 334–50. http://dx.doi.org/10.15376/biores.2.4.334-350.

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In NaHSO3-solutions of coniferaldehyde and its methyl ether (models for lignin chromophores of the cinnamaldehyde type) a dynamic equilibrium between the aldehydes and their hydrogen sulfite adducts is set up. A comparatively slow addition of hydrogen sulfite to the double bond leading to 1,3-disulfonic acid derivatives occurs; coniferaldehyde reacts slower than its methyl ether. In Na2SO3-solution both aldehydes are rapidly converted to 1,3-disulfonic acid derivatives. The results suggest that in both NaHSO3-solution and Na2SO3-solution the free cinnamaldehydes and sulfite ion are the reactan
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2

Lundquist, Knut, Jim Parkås, Magnus Paulsson, and Cyril Heitner. "Reactions of lignin chromophores of the enal and enone type with sulfite." BioResources 2, no. 3 (2007): 334–50. http://dx.doi.org/10.15376/biores.2.3.334-350.

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Abstract:
In NaHSO3-solutions of coniferaldehyde and its methyl ether (models for lignin chromophores of the cinnamaldehyde type) a dynamic equilibrium between the aldehydes and their hydrogen sulfite adducts is set up. A comparatively slow addition of hydrogen sulfite to the double bond leading to 1,3-disulfonic acid derivatives occurs; coniferaldehyde reacts slower than its methyl ether. In Na2SO3-solution both aldehydes are rapidly converted to 1,3-disulfonic acid derivatives. The results suggest that in both NaHSO3-solution and Na2SO3-solution the free cinnamaldehydes and sulfite ion are the reactan
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3

Facchetti, Antonio, Geoffrey R. Hutchison, Shahar Keinan, and Mark A. Ratner. "Control mechanisms for transport and nonlinear optical response in organic materials: a tale of twists and barriers." Inorganica Chimica Acta 357, no. 13 (2004): 3980–90. https://doi.org/10.1016/j.ica.2004.06.061.

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Simple electronic structure models are used to address two significant challenges in organic materials chemistry, the design of chromophores for strong electro-optic response (and low-energy optical absorption), and the prediction of relative mobilities and charge injection barriers for conductive oligomers. For electro-optic response, we examine two chromophore classes where twisting around an inter-ring bond can tune the electronic structure from aromatic (zwitterionic) to quinoid (neutral). The calculated nonlinear response develops a very strong maximum (βμ ∼ 1500 ×10−30 esu) at twist angl
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4

Fave, Claire, Muriel Hissler, Tamás Kárpáti та ін. "Connecting π-Chromophores by σ-P−P Bonds: New Type of Assemblies Exhibiting σ−π-Conjugation". Journal of the American Chemical Society 126, № 19 (2004): 6058–63. http://dx.doi.org/10.1021/ja0317067.

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5

Scheer, Hugo, and Hartmut Kayser. "Conformational studies of biliproteins from the insects pieris brassicae and cerura vinula." Zeitschrift für Naturforschung C 43, no. 1-2 (1988): 84–90. http://dx.doi.org/10.1515/znc-1988-1-217.

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Chromophore conformation and protein secondary structure of biliproteins from the butterfly, Pieris brassicae, and the moth, Cerura vinula, have been investigated by absorption, circular dichroism and fluorescence spectroscopy. The chromophore of the P. brassicae protein, biliverdin IXy, has probably a cyclic-helical structure similar to that of free bile pigments of the biliverdin type. Though achiral by structure the chromophore displays strong optical activity in the native protein-bound state, but becomes inactive after urea denaturation of the protein. A minor biliprotein from P. brassica
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6

Li, Yiting, C. Ed Whittle, Keith A. Walters, Kevin D. Ley та Kirk S. Schanze. "Photophysics of π-conjugated metal­organic oligomers". Pure and Applied Chemistry 73, № 3 (2001): 497–501. http://dx.doi.org/10.1351/pac200173030497.

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The optical absorption and photoluminescence properties of PPE-type p-conjugated oligomers that contain a 2,2-bipyridine-5,5¢-diyl metal coordinating unit have been examined. The spectra of the free oligomers are compared with those that contain ­Re(CO)3Cl and ­Ru(bpy)22+ chromophores chelated to the bpy-diyl unit.
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7

Khalid, Muhammad, Muhammad Usman Khan, Iqra Shafiq та ін. "Structural modulation of π-conjugated linkers in D–π–A dyes based on triphenylamine dicyanovinylene framework to explore the NLO properties". Royal Society Open Science 8, № 8 (2021): 210570. http://dx.doi.org/10.1098/rsos.210570.

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A donor–π–acceptor type series of Triphenylamine–dicyanovinylene-based chromophores ( DPMN1–DPMN11 ) was designed theoretically by the structural tailoring of π-linkers of experimentally synthesized molecules DTTh and DTTz to exploit changes in the optical properties and their nonlinear optical materials (NLO) behaviour. Density functional theory (DFT) computations were employed to understand the electronic structures, absorption spectra, charge transfer phenomena and the influence of these structural modifications on NLO properties. Interestingly, all investigated chromophores exhibited lower
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8

Matsumoto, Jin, Tsutomu Shiragami, Kazutaka Hirakawa, and Masahide Yasuda. "Water-Solubilization of P(V) and Sb(V) Porphyrins and Their Photobiological Application." International Journal of Photoenergy 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/148964.

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Porphyrins have been widely utilized as biochemical and biological functional chromophores which can operate under visible-light irradiation. Water-soluble porphyrins have been used as the drug for photodynamic therapy (PDT) and photodynamic inactivation (PDI). Although usual water-solubilization of porphyrins has been achieved by an introduction of an ionic group such as ammonium, pyridinium, sulfonate, phosphonium, or carboxyl to porphyrin ring, we proposed the preparation of water-soluble P and Sb porphyrins by modification of axial ligands. Alkyl (type A), ethylenedioxy (type E), pyridiniu
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9

Zhu, Xinju, Yaru Pan, Xinran Zhao, et al. "Cyano-Substituted Oligo(p-phenylene vinylene) Derivatives with Aggregation-Induced Enhanced Emissions and Mechanofluorochromic Luminescence." Molecules 29, no. 18 (2024): 4447. http://dx.doi.org/10.3390/molecules29184447.

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Developing red fluorescence emitters with simple structures via convenient synthetic routes is highly desirable yet challenging. Herein, two novel donor–acceptor-type red emitters, DCFOPV-TPA and SCFOPV-TPA, featuring the intramolecular charge transfer effect were designed by integrating triphenylamine and trifluoromethyl into a CN-substituted oligo(p-phenylene vinylene) backbone. Both chromophores exhibited aggregation-induced enhanced emission and solvatochromic behavior. Moreover, DCFOPV-TPA also displayed reversible mechanofluorochromic properties under external force.
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10

Espinoza, Eli Misael, John Anthony Clark, Mimi Karen Billones, et al. "Photophysics and Electrochemistry of Biomimetic Pyranoflavyliums: What Can Bioinspiration from Red Wines Offer." Photochem 2, no. 1 (2022): 9–31. http://dx.doi.org/10.3390/photochem2010003.

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Natural dyes and pigments offer incomparable diversity of structures and functionalities, making them an excellent source of inspiration for the design and development of synthetic chromophores with a myriad of emerging properties. Formed during maturation of red wines, pyranoanthocyanins are electron-deficient cationic pyranoflavylium dyes with broad absorption in the visible spectral region and pronounced chemical and photostability. Herein, we survey the optical and electrochemical properties of synthetic pyranoflavylium dyes functionalized with different electron-donating and electron-with
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Dissertations / Theses on the topic "P-type chromophores"

1

KARAMSHUK, SVITLANA. "Organic sensitizers for application in photonic and photovoltaic devices." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2015. http://hdl.handle.net/10281/76622.

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With the increasing demand for reliable and efficient devices with minimal environmental impact, novel organic materials gain extreme interest in the research community and industry. In this work we present synthetic strategies towards new organic compounds as promising materials for dye sensitized solar cells (DSCs) and low-cost integrated optics along with the investigation of these materials in devices. Despite the recent hype in the research community around DSCs, increasing efficiency of DSCs is still a challenge. In principle, one promising way to obtain DSCs with significantly enhanced
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Book chapters on the topic "P-type chromophores"

1

Rajendran, Pavitra, and Erumaipatty Rajagounder Nagarajan. "Fluorescent Polyimide in Sensing Applications." In Polyimides. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.99935.

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Potential advances in sensing can be made by conjugated polymers includes poly(p-phenylene), poly(p-phenylene vinylene), polyfluorene, and poly(thiophene). Among the most important classes of polymers are heterocyclic polymers, such as polyimides, because polyimide nanocomposites possess exceptional mechanical strength as well as chemical, mechanical and temperature resistance. Polyimide offers the potential of providing efficient sensors through its ability to work actively. There is evidence that fluorescent polyimide is efficient at detecting hazardous pollutants. Chemical modifications of
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Conference papers on the topic "P-type chromophores"

1

Arnett, David C., C. C. Moser, L. Dutton, and Norbert F. Scherer. "Optical Coherence and Anisotropy Studies of the First Events in Photosynthesis." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/up.1996.tue.17.

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The bacterial reaction center of Rhodobacter Sphaeroides contains six pigments, arranged within a protein environment. These pigments act in a very concerted way to generate a remarkably efficient charge transfer which initiates the process of photosynthesis.1 The structure of the reaction center is well known, consisting of two strongly interacting bacteriochlorophyll (BChl) molecules known as the special pair (P), two accessory BChls, and two bacteriopheophytins (H) arranged in approximately C2 symmetry.2,3,4 Upon excitation of P, either directly (light absorption) or through energy transfer
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