The Ni research group is working to create molecules at the lowest possible temperatures, and to study their chemical reactions and physical interactions. At such ultra-cold temperatures, quantum mechanics describes all aspects of the molecules: their position, orientation, and internal state.

A series of nickel dithiolene complexes Ni [S2C2 (CF3)2]2n (n = −2, −1, 0) has been investigated using Ni L- and K-edge X-ray absorption spectroscopy (XAS). The L3 centroid shifts about 0.3 eV for a change of one unit in the formal oxidation state (or 0.3 eV per oxi), corresponding to …

2022年5月20日 · Ni-L3区域双峰特征的强度比分别为855.6和857.5 eV，这为两种Ni氧化态总体的相对比例提供了一个定性指标；也就是说，在NiCoFeP样品中施加电位后，它捕捉从Ni2+到Ni3+和Ni4+的过程（图2）。

Kang-Kuen is a professor in the Department of Chemistry and Chemical Biology at Harvard and a member of the Harvard-MIT Center for Ultracold Atoms. Before joining Harvard in the summer of 2013, she was a National Research Council postdoctoral fellow at …

Rich ELNES structure in L 2,3 -edges. White line ratio and energy shift used to determine oxidation state. Share spectra with your fellow EELS users from around the world. Serial …

2022年7月25日 · Recently, our group investigated the in situ annealing effect on primary particles of Ni-rich NCM cathode materials from RT to 400 °C by measuring space-resolved Ni L3 -, Co L 3 -, Mn L 3 -, and O K-edge XAS [11].

2014年3月7日 · A series of nickel dithiolene complexes Ni [S2C2 (CF3)2]2 (n) (n = -2, -1, 0) has been investigated using Ni L- and K-edge X-ray absorption spectroscopy (XAS).

1993年5月1日 · Nickel L-edge and K-edge X-ray absorption spectroscopy of non-innocent Ni [S 2 C 2 (CF 3 ) 2 ] 2 n series (n = −2, −1, 0): direct probe of nickel fractional oxidation state changes.

2017年8月15日 · This review gives an overview of the application of metal K-edge and L-edge X-ray absorption spectroscopy (XAS), as well as Kα resonant inelastic X-ray scattering (RIXS), to the study of electronic structure in transition metal sites with emphasis on experimentally quantifying 3d orbital covalency.

L-edge X-ray absorption spectroscopy has been used to study, under a variety of conditions, the electronic structure of Ni in the Ni−Fe hydrogenases from Desulfovibriogigas, Desulfovibriobaculatus, and Pyrococcusfuriosus. The status of the enzyme films used for these measurements was monitored by FT-IR spectroscopy.