Precision measurement of electron affinity of Zr and fine structures of its negative ions.

Authors :: Xiaoxi Fu
Jiaming Li
Zhihong Luo
Xiaolin Chen
Chuangang Ning
Source :: Journal of Chemical Physics; 2017, Vol. 147 Issue 6, p1-4, 4p, 1 Diagram, 1 Chart, 3 Graphs
Publication Year :: 2017
Abstract: The high-resolution photoelectron spectra of Zr<superscript>-</superscript> were obtained via the slow-electron velocity-map imaging method. The electron affinity of Zr was measured to be 3494.67(72)cm<superscript>-1</superscript> or 0.433 283(89) eV. The accuracy has been improved by a factor of 160 compared with the previous result. The fine structures of Zr<superscript>-</superscript> were also well resolved: 251.0(37) (<superscript>4</superscript>F<subscript>5/2</subscript>), 579.6(8) (<superscript>4</superscript>F<subscript>7/2</subscript>), and 971.7(12) cm<superscript>-1</superscript> (4F<subscript>9/2</subscript>) above the ground state <superscript>4</superscript>F<subscript>3/2</subscript>. [ABSTRACT FROM AUTHOR]

Subjects :: ZIRCONIUM
ELECTRON affinity
ELECTRONIC structure
ANIONS
PHOTOELECTRON spectroscopy

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