Results 91 to 100 of about 64,520 (291)

Solvent Effect on the Solid-Surface Fluorescence of Pyrene on Cellulose Diacetate Matrices

International Journal of Optics, 2018
The effect of the solvent nature (acetonitrile, ethanol, dimethyl sulfoxide, and dioxane) and its concentration on the fluorescence intensity of pyrene sorbed on the cellulose diacetate (CDA) film from a water-organic solution was studied.
Svetlana M. Rogacheva, Elena V. Volkova, Milena I. Otradnova, Tamara I. Gubina, Anna B. Shipovskaya   +4 more
doaj   +1 more source

Crystal structure of trans-1-{2-[4-(dimethylamino)phenyl]ethyl}-4-[2-(pyren-1-yl)ethyl]cyclohexane

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C34H37N, is a pyrene derivative in which the pyrene ring system is linked to an ethylcyclohexane unit which, in turn, carries a [4-(dimethylamino)phenyl]ethyl substituent in the para position.
Sreevidya Thekku Veedu, Simone Techert
doaj   +1 more source

BN-Phenanthrene- and BN-Pyrene-Based Fluorescent Uridine Analogues

Two unprecedented fluorescent nucleosides that feature BN-doped polycyclic aromatic hydrocarbons are presented. One of them, having a BN-modified phenanthrene moiety incorporated, shows blue fluorescence but suffers from poor stability under aqueous ...
Michael Müller (1392475), Claudia Höbartner (1797466), Hermann Neitz (15315845), Holger Helten (1919122)   +3 more
core   +2 more sources

Pyrene-Labeled and Quaternized Chitosan: Synthesis, Characterization, and Its Potential Application for Fluorescently Trackable Nucleic Acid Delivery into Cells

, 2023
A chitosan derivative (Pyr-CS-HTAP) having pyrene (Pyr) and N-[(2-hydroxyl-3-trimethylammonium)] propyl (HTAP) units conjugated at C6 and C2 positions, respectively, was synthesized and characterized.
Tanapat Palaga (789102), Kornkanya Pratumyot, Voravee P. Hoven (1413331), Pongsakorn Yuntasiri, Chutamath Sittplangkoon (5367971), Tanapat Palaga, Suda Kiatkamjornwong, Pongsakorn Yuntasiri (16793448), Thitiporn Pattarakankul (5367980), Suda Kiatkamjornwong (2098099), Tinnakorn Phuangkaew, Phim-on Khunsuk, Thitiporn Pattarakankul, Kornkanya Pratumyot (12254967), Chutamath Sittplangkoon, Tinnakorn Phuangkaew (16793451), Voravee P. Hoven, Phim-on Khunsuk (4692439)   +17 more
core   +1 more source

Crystal structures of three 1-oxo-1,2-dihydronaphthalene derivatives: dimethyl 4-(4-methoxyphenyl)-2-(4-methylphenyl)-1-oxo-1,2-dihydronaphthalene-2,3-dicarboxylate, dimethyl 1-oxo-2-(pyren-4-yl)-4-(thiophen-2-yl)-1,2-dihydronaphthalene-2,3-dicarboxylate and ethyl 1-oxo-2-phenyl-2,4-bis(thiophen-2-yl)-1,2-dihydronaphthalene-3-carboxylate

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the title 1-oxo-1,2-dihydronaphthalene derivatives, C28H24O6, (I), C34H22O5S, (II), and C27H20O3S2, (III), the cyclohexa-1,3-diene rings of the 1,2-dihydronaphthalene ring systems adopt half-chair, boat and half-chair conformations, respectively.
S. Gopinath, P. Narayanan, K. Sethusankar, Jeyachandran Karunakaran, Meganathan Nandakumar, Arasambattu K. Mohanakrishnan   +5 more
doaj   +1 more source

Supramolecular Assembly of Pyrene-DNA Conjugates into Vesicles [PDF]

, 2021
Over the last two decades, supramolecular polymers have been successfully used for the assembly of organized molecular arrays. Complementary DNA strands create a defined arrangement upon hybridizing and the obtained DNA framework can be exploited for the
Häner, R., Thiede, J., Langenegger, S. M., Langenegger, Simon M., Häner, Robert, Thiede, Jan   +5 more
core  

Recent advances in photocatalytic hydrogen peroxide production

PhotoMat, EarlyView., 2023
We classify the representative photocatalytic materials for photosynthesis of hydrogen peroxide (H2O2) in recent years and discuss the related modification methods in detail, providing inspiration and insights for the future design of photocatalysts for H2O2 production.
Jinyu Yan, Yuan Li, Yunxiang Li, Shuxin Ouyang, Tierui Zhang   +4 more
wiley   +1 more source

A Reversible 900 nm Near‐Infrared Photoswitch for Invisibly Writable 2D and 3D Displays

Angewandte Chemie International Edition, EarlyView.
The peri‐benzo[a]fluoranthenethioindigo (PBFT) photoswitch enables direct excitation with near‐infrared light up to 900 nm wavelengths. It delivers a high‐performance property profile including high‐contrast color changes between bright green and deep blue.
Elias Ciekalski, Henry Dube
wiley   +1 more source

Polymorphism of pyrene on compression to 35 GPa in a diamond anvil cell

Communications Chemistry
Structural studies of pyrene have been limited to below 2 GPa. Here, we report on investigations of pyrene up to ~35 GPa using in situ single-crystal synchrotron X-ray diffraction in diamond anvil cells and ab initio calculations.
Wenju Zhou, Yuqing Yin, Dominique Laniel, Andrey Aslandukov, Elena Bykova, Anna Pakhomova, Michael Hanfland, Tomasz Poreba, Mohamed Mezouar, Leonid Dubrovinsky, Natalia Dubrovinskaia   +10 more
doaj   +1 more source

Preparation and Physical Characterization of Pyrene and Pyrrolo[3,4‐c]pyrrole‐1,4‐dione‐Based Copolymers

ChemistryOpen, 2019
Two narrow band‐gap copolymers consisting of 2,7‐bis(5‐(trimethylstannyl)thiophen‐2‐yl)‐4,5,9,10‐tetrakis(2‐ethylhexyloxy)‐pyrene (M1) as an electron‐rich unit and diketopyrrolopyrrole (DPP) as an electron‐deficient unit have been synthesized and ...
Dr. Bakhet A. Alqurashy
doaj   +1 more source