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4,281 Newest Publications about the topic dyes

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Novel stilbene‐based Fischer base analog of leuco‐TAM – (2E,2′Z)‐{2‐(4‐(E)‐styrylphenyl)propane‐1,3‐diylidene}bis(1,3,3‐trimethylindoline) – derivatives: synthesis and structural consideration by 1D NMR and 2D NMR spectroscopy

08-Oct-2015 | Sam‐Rok Keum, Hyun‐Woo Lim, Magnetic Resonance in Chemistry, 2015

Abstract We report the synthesis of a series of novel stilbene‐based (St) Fischer base analogs of leuco‐triarylmethane (LTAM) dyes by treating Fischer base with (E)‐4‐styrylbenzaldehyde derivatives. All St‐LTAM molecules examined herein are characterized by 1D and 2D NMR. They were found to ...

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Forensic applications of Raman spectroscopy for the in situ analyses of pigments and dyes in ink and paint evidence

08-Oct-2015 | Patrick Buzzini, Edward Suzuki, Journal of Raman Spectroscopy, 2015

Raman spectroscopy has proven to be a very useful tool for the forensic examination of various colored evidence, including its use in identifying pigments and dyes in paint and inks. Because both paint and inks consist of complex heterogeneous matrices, forensic scientists typically use a ...

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Organic Dyes with a Fused Segment Comprising Benzotriazole and Thieno[3,2-b]pyrrole Entities as the Conjugated Spacer for High Performance Dye-Sensitized Solar Cells

07-Oct-2015 | Jen-Shyang Ni; Yi-Chi Yen; Jiann Tseun Lin, Chemical Communication, 2015

Sensitizers with a fused segment comprising electron deficient benzotriazole (BZ) and electron rich thiophene or thieno[3,2-b]pyrrole entities as the conjugated spacer have been synthesized for dye-sensitized solar cells (DSSCs). The power conversion efficiency (PCE) increases with elongation of ...

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Design and synthesis of aromatic molecules for probing electric fields at the nanoscale

07-Oct-2015 | Sanli Faez; Nico R. Verhart; Marios Markoulides; Francesco Buda; André Gourdon; Michel Orrit, Faraday Discussions, 2015

We propose using halogenated organic dyes as nanoprobes for electric fields and show their greatly enhanced Stark coefficients using density functional theory (DFT) calculations. We analyse halogenated variants of three molecules that have been of interest for cryogenic single molecule ...

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Computational insights on the excited state proton transfer reactions in azo and azomethine dyes

06-Oct-2015 | Marika Savarese, Eric Bremond, Liudmil Antonov, Ilaria Ciofini, Carlo Adamo, ChemPhysChem, 2015

State of the art Density Functional Theory approaches have been employed to provide an accurate description of the photophysical properties of azodyes and Schiff bases displaying intramolecular hydrogen bonding features . These compounds exist as tautomeric mixtures at the ground state and, upon ...

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Synthesis and characterization of chitosan‐based polyelectrolyte complexes, doped with xanthene dyes

05-Oct-2015 | Evgenia Slyusareva, Marina Gerasimova, Vitaliy Slabko, Nina Abuzova, Alexei Plotnikov, Alexander Eychmüller, ChemPhysChem, 2015

Biocompatible chitosan‐based polyelectrolyte complexes (PECs) doped with xanthene dyes (fluorescein, eosin Y, erythrosin В, rhodamine 6G) were synthesized and characterized by scanning electron microscopy, dynamic light scattering, zeta potential measurements, absorption and luminescence ...

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First Principle Study of Electronic and Non-Linear Optical (NLO) Properties of Triphenylamine Dyes: Interactive Design Computation of New NLO Compounds

05-Oct-2015 | Muhammad Ramzan Saeed Ashraf Janjua, Zain Hassan Yamani, Saba Jamil, Asif Mahmood, Imran Ahmad, Muhammad Haroon, Mud ..., Australian Journal of Chemistry, 2015

Muhammad Ramzan Saeed Ashraf Janjua, Zain Hassan Yamani, Saba Jamil, Asif Mahmood, Imran Ahmad, Muhammad Haroon, Mudassir Hussain Tahir, Zhihua Yang, Shilie Pan The structure–property relationship indicates that the β value increases with increasing π-conjugating lengths. Based on experimental ...

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Assembly of three new POM-based Ag(I) coordination polymers with antibacterial and photocatalytic properties

03-Oct-2015 | Author(s): Xin-Xin Lu, Yu-Hui Luo, Chen Lu, Xin Chen, Hong Zhang, Journal of Solid State Chemistry, 2015

Publication date: December 2015 Source:Journal of Solid State Chemistry, Volume 232 Author(s): Xin-Xin Lu, Yu-Hui Luo, Chen Lu, Xin Chen, Hong Zhang Three new silver coordination polymers, namely, {Ag3(bpy)6[PW12O40]} (1), {Ag5(H2biim)2(Hbiim-NO2)2[PW12O40]} (2), ...

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Synthesis and Photovoltaic Properties of the Novel Dye of Branched Chain Polymeric Metal Complexes with Cyclopentadithiophene Derivatives as a Donor

02-Oct-2015 | YE LIU, QIUFANG XIE, JIAOMEI HU, DAHAI PENG, YANLONG LIAO, CHUNXIAO ZHU, CHAOFAN ZHONG, Advances in Polymer Technology, 2015

ABSTRACT Four novel donor‐π‐acceptor dyes (P1–P4) based on branched chain polymeric metal complexes were designed and synthesized, which use cyclopentadithiophene or fluorene derivatives as an electron donor (D), phenanthroline metal complex as an electron acceptor (A), and thiophene as a ...

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Generation of Hydrogen by Visible Light‐Induced Water Splitting with the Use of Semiconductors and Dyes

02-Oct-2015 | Chintamani Nagesa Ramachandra Rao, Srinivasa Rao Lingampalli, Small, 2015

Photosynthesis that occurs in plants involves both the oxidation of water and the reduction of carbon dioxide. Plants carry out these reactions with ease, by involving electron‐transport chains. In this article, hydrogen generation by the reduction of water in the laboratory by using ...

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