Results 61 to 70 of about 17,253,040 (308)

Triplet-State Structures, Energies, and Antiaromaticity of BN Analogues of Benzene and Their Benzo-Fused Derivatives

, 2019
It is well known that benzene is aromatic in the ground state (the Hückel’s rule) and antiaromatic in the first triplet (T1) excited state (the Baird’s rule).
Marija Baranac-Stojanović (1447213)
core   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

Carotenoid triplet state formation in Rhodobacter sphaeroides R-26 reaction centers exchanged with modified bacteriochlorophyll pigments and reconstituted with spheroidene [PDF]

, 1993
Triplet state electron paramagnetic resonance (EPR) experiments have been carried out at X-band on Rb. sphaeroides R-26 reaction centers that have been reconstituted with the carotenoid, spheroidene, and exchanged with 132-OH-Zn-bacteriochlorophyll a and
Chynwat, V., Hartwich, G., Meyer, M., Scheer, Hugo, Katheder, Ingrid, Frank, H. A.   +5 more
core   +1 more source

Sterically protected π-electron systems for efficient solid-state photon upconversion

Nature Communications
A solid-state visible-to-ultraviolet triplet–triplet annihilation-based photon upconversion system driven by low-intensity light at sunlight levels is developed.
Naoyuki Harada, Hayato Shoyama, Nutnicha Boonmong, Kiichi Mizukami, Yuya Watanabe, Pei Zhao, Masahiro Ehara, Yoichi Sasaki, Nobuo Kimizuka   +8 more
doaj   +1 more source

Obtaining triplet-triplet absorption spectra and triplet lifetimes of long-lived molecules with a UV-Visible spectrophotometer

Journal of Photochemistry and Photobiology
A simple method for obtaining triplet-triplet absorption (TTA) spectra and triplet state (T1) lifetimes of long-lived triplets is presented and demonstrated with the polycyclic aromatic hydrocarbon coronene (both normal and perdeuterated forms) in a ...
Tiago Palmeira, David S. Conceição, Diana P. Ferreira, Carla C. Ferreira, Luís F. Vieira Ferreira, Mário N. Berberan-Santos   +5 more
doaj   +1 more source

Triplet-Pair States in Organic Semiconductors

Annual Review of Physical Chemistry, 2019
Entanglement of states is one of the most surprising and counterintuitive consequences of quantum mechanics, with potent applications in cryptography and computing. In organic semiconductor materials, one particularly significant manifestation is the spin-entangled triplet-pair state, which consists of a pair of localized triplet excitons coupled into
Musser, A.J., Clark, J.
openaire   +3 more sources

Ultrafast Thermal Shock Synthesis of CuNiSnLa Medium‐Entropy Metallic Glass for Sustainable Nitrogen Fixation via Plasma‐Coupled Electrocatalysis

Advanced Functional Materials, EarlyView.
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen, Peng‐Jun Deng, Yang Liu, Shenglong Huang, Shuo Sun, Haoxuan Li, Jiajia Lu, Panagiotis Tsiakaras   +7 more
wiley   +1 more source

Triplet-Triplet Annihilation Upconversion Based Nanosensors for Fluorescence Detection of Potassium

, 2020
Typical ionophore-based nanosensors use Nile blue derived indicators called chromoionophores, which must contend with strong background absorption, autofluorescence, and scattering in biological samples that limit their usefulness.
Alexandra L. Dailey (8338533), Meredith D. Greer (8338530), Megan P. Jewell (8338527), Kevin J. Cash (1650907)   +3 more
core   +1 more source

Validation of the triplet ground state in a persistent derivative of Clar’s hydrocarbon [PDF]

, 2021
Triangulene is a prototypical non-Kekulé diradical known as Clar’s hydrocarbon. It is the smallest non-Kekulé graphene fragment comprised of six benzenoid rings fused in a triangular shape.
Tomáš, Šolomek, Sabine, Richert, Olivier, Blacque, Maximilian, Mayländer, Pia, Kappeler, Leoš, Valenta, Michal, Juríček   +6 more
core   +1 more source

One‐Step Curcumin‐Mediated Multiphoton Lithography for Bioactive 3D Scaffolds

Advanced Functional Materials, EarlyView.
Curcumin‐mediated multiphoton lithography enables one‐step fabrication of highly architected complex gelatin methacryloyl scaffolds by exploiting curcumin as a multifunctional bioactive photoinitiator. The resulting 3D structures support mesenchymal stem cell adhesion, proliferation, and migration, while exhibiting dual antibacterial activity through ...
Myrto Charitaki, Michalis Stavrou, Chrysanthi Pinelopi Apostolidou, Elmina Kabouraki, David Gray, Anna Mitraki, Anthi Ranella, Maria Farsari   +7 more
wiley   +1 more source