Results 11 to 20 of about 353,613 (251)

Fully Conjugated Heteroatomic Non- and Quasi-Alternant Polyradicals

open access: yesChemistry
In this work, we present fully π-conjugated diradical(oid)s and tetraradical(oid)s with five-membered non-alternant cyclopentadienyl and quasi-alternant thiophene rings, the latter of which is used as a source of aromatic stabilization.
Sergi Betkhoshvili   +3 more
doaj   +2 more sources

Fully conjugated ladder polymers. [PDF]

open access: yesChem Sci, 2017
Syntheses, properties and applications of fully conjugated ladder polymers are reviewed, together with an outlook to future opportunities and challenges.
Lee J   +4 more
europepmc   +3 more sources

Fully Conjugated Tetraoxa[8]circulene-Based Porous Semiconducting Polymers. [PDF]

open access: yesAngew Chem Int Ed Engl, 2022
AbstractTetraoxa[8]circulenes (TOCs) are a class of hetero[8]circulenes featuring a planar cyclooctatetraene core with a mixed aromatic/antiaromatic motif that governs their electronic properties. Polymeric TOCs (pTOCs) have been the subject of several computational simulations because they are predicted to be low‐band‐gap semiconductors, but they have
Fritz PW   +5 more
europepmc   +5 more sources

Synthesis and Properties of Fully-Conjugated Indacenedithiophenes. [PDF]

open access: yesChem Sci, 2014
The regioselective synthesis and optoelectronic characterization of four fully-conjugated, isomeric indacenedithiophenes are disclosed.
Young BS   +5 more
europepmc   +5 more sources

Synthesis and Characterization of Fully Conjugated Ladder Naphthalene Bisimide Copolymers. [PDF]

open access: yesPolymers (Basel), 2018
Fully conjugated ladder copolymers have attracted considerable attention due to their unique fused-ring structure and optoelectronic properties. In this study, two fully conjugated ladder naphthalene diimide (NDI) copolymers, P(NDI-CZL) and P(NDI-TTL) with imine-bridged structures are presented in high yields.
Liu F   +6 more
europepmc   +4 more sources

Theoretical studies on donor–acceptor based macrocycles for organic solar cell applications

open access: yesScientific Reports, 2022
We have designed a series of new conjugated donor–acceptor-based macrocyclic molecules using state-of-the-art computational methods. An alternating array of donors and acceptor moieties in these macrocycle molecules are considered to tune the electronic ...
Sheik Haseena, Mahesh Kumar Ravva
doaj   +1 more source

On the determination of fully conjugate hypoid tooth flanks [PDF]

open access: yesMechanism and Machine Theory, 2020
Abstract Presented is a procedure to individually specify fully conjugate hypoid gear tooth flanks. Cartesian coordinates for the hypoid tooth flanks are derived in terms of a planar rack with a specified constant pressure angle. These coordinates define a “coordinate curve” on the tooth flank. Each coordinate curve depends on an axial coordinate and
Dooner, David   +4 more
openaire   +1 more source

Facile construction of fully sp2-carbon conjugated two-dimensional covalent organic frameworks containing benzobisthiazole units

open access: yesNature Communications, 2022
Synthesis of fully π-conjugated covalent organic frameworks (COFs) remains still challenging. Here, the authors propose a versatile synthesis method based on Knoevenagel polycondensation for the synthesis of vinylene-linked benzobisthiazole-based 2D COFs.
Yuancheng Wang   +6 more
doaj   +1 more source

Light-induced charge generation in polymeric nanoparticles restores vision in advanced-stage retinitis pigmentosa rats

open access: yesNature Communications, 2022
Retinal dystrophies such as Retinitis pigmentosa are among the most prevalent causes of inherited incurable legal blindness. Here the authors demonstrate that conjugated polymer nanoparticles reinstate visual functions in aged rats with fully degenerated
S. Francia   +19 more
doaj   +1 more source

4,4′,4″-(Benzene-1,3,5-triyltris(ethyne-2,1-diyl))tris(1-methylpyridin-1-ium) Iodide

open access: yesMolbank, 2023
Despite having been known for a long time, quaternary 4,4′-bipyridinium salts, or viologens, are still a highly inspiring class of compounds, thanks to their peculiar redox and charge transfer properties.
Lorenza Romagnoli   +2 more
doaj   +1 more source

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