Results 211 to 220 of about 108,805 (248)

Orchestrating Anion–π+ Interactions to Accelerate Metal‐Free Room‐Temperature Phosphorescence

Angewandte Chemie, EarlyView.
Tuning anion–π+ interactions in pyridinium iodide contact ion pairs enables ultrafast metal‐free room‐temperature phosphorescence (540–605 nm) with radiative rates up to 5.2×105 s−1. Strong iodide→π+ charge‐transfer coupling, enhanced spin–orbit interactions, and dynamic ion‐pair organization accelerate intersystem crossing and emission, establishing ...
Eetu Hakkarainen, Corentin Montagne, Hao‐Cheng Lin, Chen‐Yu Lin, Khai‐Nghi Truong, Po‐Yu Chen, Anton Nechaev, Fabien B. L. Cougnon, Igor O. Koshevoy, Toni Eskelinen, Hao‐Wu Lin, Pi‐Tai Chou, Andrey Belyaev   +12 more
wiley   +1 more source

Ablation of CFRP Modified with Copper and Calcium Hydroxyapatites by Femtosecond Laser Pulses for Further Material Cutting and Milling Applications. [PDF]

Polymers (Basel)
Šlevas P, Ulčinas O, Orlov S, Vanagas E, Bilousova A, Baklan D, Myronyuk O.   +6 more
europepmc   +1 more source

Single‐Atom Control of Aromaticity and Excited‐State Dynamics in Endohedral Zirconium–Antimony Zintl Clusters

Angewandte Chemie, EarlyView.
Single‐atom growth from [Zr@Sb12]2− to [Zr@Sb13]3− disrupts the closed‐shell S2P6 superatomic configuration and markedly attenuates three‐dimensional (3D) aromaticity. Ultrafast spectroscopy further links stronger spherical aromaticity to slower excited‐state relaxation, establishing an atom‐resolved structure‐aromaticity‐dynamics relationship ...
Yun Zhang, Ziqi Deng, Wen‐Juan Tian, Hui‐Qing Sun, Kang Sun, Alvaro Muñoz‐Castro, Zhong‐Ming Sun, Teng‐Teng Chen   +7 more
wiley   +1 more source

Investigations of spin textures at small length and short timescales with neutron, x-ray, and optical methods. [PDF]

Sci Adv
Fischer P, Broholm C, Tam CC, Wilson SD, Rasing T, Kimel AV.   +5 more
europepmc   +1 more source

Beyond Radical Emitters: Hot‐Exciton Electroluminescence From Singlet Diradicaloids

Angewandte Chemie, EarlyView.
The first hot‐exciton mechanism in a singlet diradicaloid is demonstrated in a polychlorinated Thiele hydrocarbon‐based organic light‐emitting transistor. Reverse intersystem crossing involving the T2 and bright singly excited states enables electroluminescence beyond the 25% spin‐statistical limit, leading to remarkable external quantum efficiency ...
Mario Prosa, Eugenio Lunedei, Michele Orza, Davide Mesto, Roberto Cantoni, Francesco Reginato, Angela Punzi, Arthur R. J. Barreto, Yasi Dai, Benedetta Carlotti, Fabrizia Negri, Stefano Toffanin, Davide Blasi   +12 more
wiley   +1 more source

Effect of 0.1% sodium hyaluronate on femtosecond laser scanning during small incision lenticule extraction. [PDF]

Int Ophthalmol
Shuai Y, Liu X, Zeng T, Chen K.
europepmc   +1 more source

Site‐Specific Molecular Engineering Redirects Radical Pathways for Selective Photocatalytic Coupling of Methane to C2+ Hydrocarbons

Angewandte Chemie, EarlyView.
Site‐specific self‐assembly of alkyl thiols on Au/TiO2 enables precise modulation of interfacial electron distribution and the local microenvironment through covalent Au‐thiolate interactions. This site‐specific molecular engineering synergistically promotes surface kinetics and charge separation, suppressing ·O2−‐driven overoxidation and thereby ...
Yaru Shao, Wanying Guo, Wei Li, Gaoyu Cui, Huijie Cheng, Lingfeng Zhu, Liqun Ye, Zihan Qiu, Yu Shan, Rui Li, Tianyi Ma, Jungang Hou   +11 more
wiley   +1 more source

Ultrafast Photochemical Reaction Dynamics of a Cyclic (Alkyl)(Amino)Carbene-Carbon Disulfide Dimer Probed by Femtosecond Infrared Spectroscopy. [PDF]

Int J Mol Sci
Jeon S, Shin J, Cha J, Kim Y, Lim M.
europepmc   +1 more source

Revisiting Coulombic Efficiency Paradigm: Electrolyte Additive Design for Lithium Metal Batteries

Angewandte Chemie, EarlyView.
Coulombic efficiency (CE) is a key metric for screening advanced electrolyte formulations for rechargeable batteries. Combined with interphasial characterizations, statistical analyses of CE data uncover the synergistic interaction between fluorinated additives and salt anions, enabling more precise correlations of chemical functionalities with ...
Qixin Wang, Jiaxun Yang, Pu Li, Kun Zhao, Xinxin Zhang, Bowen Zheng, Qiangfu Sun, Zhongyang Zhang, Wenfang Feng, Javier Carrasco, Hailong Yu, Gebrekidan Gebresilassie Eshetu, Egbert Figgemeier, Michel Armand, Xuejie Huang, Zhibin Zhou, Heng Zhang   +16 more
wiley   +1 more source

Bidirectional terahertz frequency conversion via structural resonances at a plasma time boundary. [PDF]

Sci Adv
Huang Y, Zhou B, Xuan A, Gao M, Lou J, Qu X, Zhao Z, Shang C, Wang X, Chang C, Asadchy V.   +10 more
europepmc   +1 more source