Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Xunmin Guo"'
Autor:
Jiebo Li, Huifeng Qian, Hailong Chen, Zhun Zhao, Kaijun Yuan, Guangxu Chen, Andrea Miranda, Xunmin Guo, Yajing Chen, Nanfeng Zheng, Michael S. Wong, Junrong Zheng
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Energy migrations at metal nanomaterial surfaces are fundamentally important to heterogeneous reactions. Here, the authors employ ultrafast vibrational spectroscopy to show two distinctive energy migration pathways of monolayer adsorbate molecules on
Externí odkaz:
https://doaj.org/article/c35238216d4f4bbfb0d19dd5185da1c1
Autor:
Yufan Zhang, Chao Guan, Huaifeng Li, Xin Chen, Kuo-Wei Huang, Shixiong Min, Yupeng Pan, Junrong Zheng, Bin Zheng, Xunmin Guo, Hailong Chen
Publikováno v:
Proceedings of the National Academy of Sciences. 115:12395-12400
The molecular structure of a catalytically active key intermediate is determined in solution by employing 2D IR spectroscopy measuring vibrational cross-angles. The formate intermediate (2) in the formic acid dehydrogenation reaction catalyzed by a p
Autor:
Andrea Miranda, Yajing Chen, Bo Jiang, Jiebo Li, Kaijun Yuan, Yuneng Shen, Junrong Zheng, Xunmin Guo, Hailong Chen, Yufan Zhang
Publikováno v:
The Journal of Physical Chemistry C. 120:25173-25179
Knowledge of vibrational energy transfer on a metal nanoparticle/liquid interface is essential for understanding the energy conversion process involved in many heterogeneous nanocatalyses. In this study, we investigate mode-specific vibrational energ
Autor:
Guangxu Chen, Andrea Miranda, Jiebo Li, Huifeng Qian, Zhun Zhao, Xunmin Guo, Hailong Chen, Michael S. Wong, Nanfeng Zheng, Junrong Zheng, Kaijun Yuan, Yajing Chen
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)
Nature Communications
Nature Communications
Energy migrations at metal nanomaterial surfaces are fundamentally important to heterogeneous reactions. Here we report two distinctive energy migration pathways of monolayer adsorbate molecules on differently sized metal nanoparticle surfaces invest
Publikováno v:
Journal of Chemical Physics; 2015, Vol. 142 Issue 21, p1-8, 8p, 2 Diagrams, 5 Graphs
Publikováno v:
The Journal of Physical Chemistry A. 119:669-680
Energy-gap-dependent vibrational-energy transfers among the nitrile stretches of KSCN/KS(13)CN/KS(13)C(15)N in D2O, DMF, and formamide liquid solutions at room temperature were measured by the vibrational-energy-exchange method. The energy transfers
Publikováno v:
The Journal of Physical Chemistry Letters
Photolyase contains a flavin cofactor in a fully reduced form as its functional state to repair ultraviolet-damaged DNA upon blue light absorption. However, after purification, the cofactor exists in its oxidized or neutral semiquinone state. Such ox
Publikováno v:
Phys. Chem. Chem. Phys.. 16:13995-14014
Resonant and nonresonant intermolecular vibrational energy transfers in KSCN/KSC(13)N/KS(13)C(15)N aqueous and DMF solutions and crystals are studied. Both energy-gap and temperature dependent measurements reveal some surprising results, e.g. inverte
Publikováno v:
The Journal of Physical Chemistry B. 117:15614-15624
The molecular conformations of crystalline L-cysteine prepared in its orthorhombic form were determined by the vibrational cross angle measurements. Its major dihedral angles of chemical bonds determined by this method are consistent with the results
Autor:
Aziz Sancar, Jiang Li, Zheyun Liu, Lijuan Wang, Meng Zhang, Chuang Tan, Dongping Zhong, Xunmin Guo
Publikováno v:
Proceedings of the National Academy of Sciences. 110:12972-12977
The flavin adenine dinucleotide cofactor has an unusual bent configuration in photolyase and cryptochrome, and such a folded structure may have a functional role in initial photochemistry. Using femtosecond spectroscopy, we report here our systematic