Accurate electron affinity of Ti and fine structures of its anions

2018/10/02 by Rulin Tang, Xiaoxi Fu, Chuangang Ning · 6 citations
Materials Science · Physics and Astronomy · Engineering · Chemistry · #Luminescence Properties of Advanced Materials #Advanced Chemical Physics Studies #Gas Sensing Nanomaterials and Sensors #Electron affinity (data page) #Electron #Chemistry #Crystallography #Materials science #Chemical physics #Nanotechnology #Physics #Organic chemistry #Nuclear physics #Molecule

paper · doi:10.1063/1.5049629

openalex publication_date 2018/10/02 · openalex created_date 2018/10/12 · openalex updated_date 2026/06/19

Abstract

The high-resolution photoelectron energy spectra of atomic titanium and its hydride anions were obtained on a slow-electron velocity-map imaging spectrometer equipped with a cold ion trap. The cold ion trap employed in the present measurement was found to be very helpful for reducing the interference from the titanium hydride anions. The electron affinity of Ti was determined to be 609.29(34) cm−1 or 75.54(4) meV. The accuracy was improved by a factor of 350 compared with the previous result. The fine structures of Ti− were clearly resolved: 70.0(12)(4F5/2), 165.2(15)(4F7/2), and 285.2(15) cm−1 (4F9/2) above its ground state 4F3/2. Moreover, the measured electron affinity and vibrational frequency of TiH can be reproduced well using the high level calculations.

Citations

• Gallium: the backbone of the electronics industry
• Atomic negative ions: structure, dynamics and collisions
• Accurate Electron Affinity of Iron and Fine Structures of Negative Iron ions
• Accurate electron affinity of V and fine-structure splittings of V− via slow-electron velocity-map imaging
• Precision measurement of the electron affinity of niobium
• Observation of Rhenium Anion and Electron Affinity of Re
• Precision measurement of electron affinity of Zr and fine structures of its negative ions
• Electron affinity of the hafnium atom
• CODATA recommended values of the fundamental physical constants: 2014
• Binding Energies in Atomic Negative Ions: III

Cited by

• Electron Affinities of Atoms and Structures of Atomic Negative Ions
• Accurate electron affinity of Ga and fine structures of its anions
• Measurement of electron affinity of atomic lutetium via the cryo-SEVI Method
• Accurate electron affinity of atomic cerium and excited states of its anion*
• Electron affinity measurements of lanthanide atoms: Pr, Nd, and Tb
• Electron affinity (data page) [wikipedia]