Results 21 to 30 of about 1,657,402 (197)

Infrared spectroscopic signature of the structural diversity of the water heptamer

Cell Reports Physical Science, 2022
Summary: As a key species in understanding the hydrogen-bonding network transitions between liquid water and ice, the neutral water heptamer is a challenging experimental target, owing to the richness of low-lying isomers.
Yang-Yang Zhang, Chong Wang, Gang Li, Xiangyu Zang, Yong Yu, Han-Shi Hu, Jiayue Yang, Weiqing Zhang, Dongxu Dai, Guorong Wu, Ling Jiang, Xueming Yang, Jun Li   +12 more
doaj   +1 more source

Ultrafast Reaction Dynamics [PDF]

Physics Today, 1990
A decade ago this magazine devoted a special issue to laser chemistry (see PHYSICS TODAY, November 1980). One of the articles emphasized the importance of time scales in chemical reactions and the possible use of ultrashort lasser pulses to induce chemistry. Over the past 10 years new laser techniques, and gas-phase and molecular-beam experiments, have
Gruebele, Martin, Zewail, Ahmed H.
openaire   +3 more sources

Observation of a phonon bottleneck in copper-doped colloidal quantum dots

Nature Communications, 2019
Weak electron-phonon scattering that can enable long-lived hot electrons in semiconductors is of interest in hot carrier solar cells. Here, the authors report copper-doped colloidal cadmium-selenide quantum dots with hot electron lifetime extended by ...
Lifeng Wang, Zongwei Chen, Guijie Liang, Yulu Li, Runchen Lai, Tao Ding, Kaifeng Wu   +6 more
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Vibrationally excited molecular hydrogen production from the water photochemistry

Nature Communications, 2021
Understanding the source of vibrationally excited molecular hydrogen is an essential prerequisite for understanding the chemical evolution in the universe.
Yao Chang, Feng An, Zhichao Chen, Zijie Luo, Yarui Zhao, Xixi Hu, Jiayue Yang, Weiqing Zhang, Guorong Wu, Daiqian Xie, Kaijun Yuan, Xueming Yang   +11 more
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Scaling limits of spatial compartment models for chemical reaction networks

, 2015
We study the effects of fast spatial movement of molecules on the dynamics of chemical species in a spatially heterogeneous chemical reaction network using a compartment model. The reaction networks we consider are either single- or multi-scale.
Pfaffelhuber, Peter, Popovic, Lea
core   +1 more source

Dynamical importance of van der Waals saddle and excited potential surface in C(1D)+D2 complex-forming reaction

Nature Communications, 2017
It is commonly held that van der Waals wells are inevitable in chemical reactions. Here, the authors show that weak van der Waals forces in the entrance channel of a prototypical complex-forming reaction cause a van der Waals saddle instead, with ...
Zhitao Shen, Haitao Ma, Chunfang Zhang, Mingkai Fu, Yanan Wu, Wensheng Bian, Jianwei Cao   +6 more
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Correction: Umer et al. High Order Split Operators for the Time-Dependent Wavepacket method of Triatomic Reactive Scattering in Hyperspherical Coordinates. Entropy 2019, 21, 979

Entropy, 2022
The authors would like to update the affiliations for Umair Umer and Syed Kazim Usman in the published publication [...]
Umair Umer, Hailin Zhao, Syed Kazim Usman, Zhigang Sun   +3 more
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Hydroxyl super rotors from vacuum ultraviolet photodissociation of water

Nature Communications, 2019
Free electron lasers provide a state-of-the-art tool to investigate the photochemistry of water. Here, the authors show that highly rotationally excited hydroxyl radicals, so-called “super rotors” existing above the bond dissociation energy, are observed
Yao Chang, Yong Yu, Heilong Wang, Xixi Hu, Qinming Li, Jiayue Yang, Shu Su, Zhigang He, Zhichao Chen, Li Che, Xingan Wang, Weiqing Zhang, Guorong Wu, Daiqian Xie, Michael N. R. Ashfold, Kaijun Yuan, Xueming Yang   +16 more
doaj   +1 more source

Mechanisms of triplet energy transfer across the inorganic nanocrystal/organic molecule interface

Nature Communications, 2020
Though literature reports models describing triplet energy transfer between inorganic semiconductors and organic molecules, a unified mechanism for this process is still lacking.
Xiao Luo, Yaoyao Han, Zongwei Chen, Yulu Li, Guijie Liang, Xue Liu, Tao Ding, Chengming Nie, Mei Wang, Felix N. Castellano, Kaifeng Wu   +10 more
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Three body photodissociation of the water molecule and its implications for prebiotic oxygen production

Nature Communications, 2021
Three-body dissociation of water, producing one oxygen and two hydrogen atoms, has been difficult to investigate due to the lack of intense vacuum ultraviolet sources.
Yao Chang, Yong Yu, Feng An, Zijie Luo, Donghui Quan, Xia Zhang, Xixi Hu, Qinming Li, Jiayue Yang, Zhichao Chen, Li Che, Weiqing Zhang, Guorong Wu, Daiqian Xie, Michael N. R. Ashfold, Kaijun Yuan, Xueming Yang   +16 more
doaj   +1 more source