Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Gary V. Lopez"'
Publikováno v:
International Journal of Mass Spectrometry. 434:7-16
We report a joint experimental and theoretical investigation on the structures and bonding of a series of di-niobium gold clusters, Nb2Aux− (x = 2–5), using photoelectron spectroscopy and density functional calculations. Well-resolved spectral fe
Autor:
Lai-Sheng Wang, Gary V. Lopez, Navneet Singh Khetrapal, Tian Jian, Seema Pande, Xiao Cheng Zeng
Publikováno v:
The Journal of Physical Chemistry C. 121:18234-18243
We report a combined photoelectron spectroscopy and theoretical study of the structural evolution of aluminum cluster anions doped with two gold atoms, Au2Aln– (n = 3–11). Well-resolved photoelectron spectra have been obtained at several photon e
Autor:
Joseph Czekner, Teng-Teng Chen, Gary V. Lopez, Ling Fung Cheung, Wei-Li Li, Lai-Sheng Wang, Tian Jian
Publikováno v:
Chem. Sci.. 8:7528-7536
We report a photoelectron spectroscopy and high-resolution photoelectron imaging study of a bimetallic Nb2Au6− cluster. Theoretical calculations, in conjunction with the experimental data, reveal that Nb2Au6−/0 possess high-symmetry D6h structure
Publikováno v:
Chemical Science. 7:7020-7027
Metal-doped boron clusters provide new opportunities to design nanoclusters with interesting structures and bonding. A cobalt-doped boron cluster, CoB18−, has been observed recently to be planar and can be viewed as a motif for metallo-borophenes,
Autor:
Dao-Ling Huang, Lai-Sheng Wang, Teng Teng Chen, Tian Jian, Jun Li, Gary V. Lopez, Zachary A. Piazza, Xin Chen, Jing Su, Wan-Lu Li, Ping Yang, Hongtao Liu
Publikováno v:
Chemical Science. 7:475-481
We report a joint photoelectron spectroscopy and theoretical investigation of the gaseous Au2I3− cluster, which is found to exhibit two types of isomers due to competition between Au–I covalent bonding and Au–Au aurophilic interactions. The cov
Autor:
Xiao Cheng Zeng, Gary V. Lopez, Rhitankar Pal, Tian Jian, Navneet Singh Khetrapal, Seema Pande, Lai-Sheng Wang
Publikováno v:
Nanoscale. 8:9805-9814
Besides the size and structure, compositions can also dramatically affect the properties of alloy nanoclusters. Due to the added degrees of freedom, determination of the global minimum structures for multi-component nanoclusters poses even greater ch
Autor:
Gary V. Lopez, Alexandros K. Spiliotis, Martin Fournier, David Chandler, Tiernan Casey, T. Peter Rakitzis
Publikováno v:
Molecular Physics. 119:e1778200
The dissociation of aligned, electronically excited H2 (E,F 1 Σ g + ), followed by the ionisation of the produced H atom, is analysed via the velocity mapped imaging technique. The dissociation and...
Autor:
Frances Hill, Rudy F. Garcia, Zefram Marks, Ioakeimidi Katerina, Mike Romero, Gildardo Delgado, Gary V. Lopez
Publikováno v:
2018 31st International Vacuum Nanoelectronics Conference (IVNC).
Next generation electron beam inspection tools will require a high brightness electron source. We have designed, microfabricated and tested arrays of metal coated silicon cold field emitters that have high current density and high reduced brightness,
Publikováno v:
The Journal of Physical Chemistry B. 120:1635-1640
Boronyl (BO) is a monovalent σ radical with a B≡O triple bond. Its chemistry has remained relatively unknown, though analogy has been established for BO with monovalent atoms, such as H or Au. Here we report a photoelectron spectroscopic study of
Autor:
Damien Forthomme, Arlan W. Mantz, C. P. McRaven, Matthew J. Cich, Gary V. Lopez, Gregory E. Hall, Trevor J. Sears
Publikováno v:
The Journal of Physical Chemistry A. 117:13908-13918
The P(11) line of the ν1 + ν3 combination band of C2H2 was studied using an extended cavity diode laser locked to a frequency comb. Line shapes were measured for acetylene and nitrogen gas mixtures at a series of temperatures between 125 and 296 K