Magnetic circular dichroism studies of matrix‐isolated atoms: Excited state spin‐orbit coupling constant reduction of copper in the noble gases

1984 ◽  
Vol 80 (6) ◽  
pp. 2401-2406 ◽  
Author(s):  
Martin Vala ◽  
Kyle Zeringue ◽  
Jalal ShakhsEmampour ◽  
Jean‐Claude Rivoal ◽  
Robert Pyzalski
Keyword(s):  
Circular Dichroism ◽  
Excited State ◽  
Noble Gases ◽  
Magnetic Circular Dichroism ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Coupling Constant ◽  
State Spin ◽  
Circular Dichroïsm

Magnetic Susceptibilities of 2T2 Ions. Part 1

1972 ◽  
Vol 50 (10) ◽  
pp. 1468-1471 ◽  
Author(s):  
Alan D. Westland
Keyword(s):  
Magnetic Susceptibility ◽  
Excited State ◽  
Reduction Factor ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Coupling Constant ◽  
Magnetic Susceptibilities

An expression for the magnetic susceptibility of octahedral d1 complexes is derived exactly in terms of an orbital reduction factor k taking into account the presence of the formal 2E excited state. Sample calculations show that the improved expression gives results for susceptibility which are lower at times by several percent from those given by previous expressions. The results given by Figgis using Kotani's method are adequately precise when the spin–orbit coupling constant is no larger than ~0.1 Dq.

Zeeman Effect in the 2782 Å Band of HCP

1972 ◽  
Vol 50 (15) ◽  
pp. 1705-1710 ◽  
Author(s):  
Jon G. Moehlmann ◽  
A. Hartford Jr. ◽  
John R. Lombardi
Keyword(s):  
Excited State ◽  
Zeeman Effect ◽  
Zeeman Splitting ◽  
Rotational Constant ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Coupling Constant ◽  
Band Origin

The Zeeman effect in the 2782.22 Å band of HCP has been observed and indicates the excited state is 3Δ1. A formula is derived for a 3Δ1 state, intermediate between case (a) and case (b), which expresses the Zeeman splitting as a function of J and the spin–orbit coupling constant. By applying this formula the spin–orbit coupling constant is found to be +22.3 or −16.0 cm−1, depending on whether the 3Δ state is normal or inverted. The rotational constant and band origin for these two cases are also computed.

Ground configuration splitting in UCl5

1977 ◽  
Vol 55 (10) ◽  
pp. 937-942 ◽  
Author(s):  
A. F. Leung ◽  
Ying-Ming Poon
Keyword(s):  
Crystal Field ◽  
Energy Levels ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Coupling Constant ◽  
Point Charge Model ◽  
X Ray Crystallography ◽  
Charge Model ◽  
Crystal Field Parameters

The absorption spectra of UCl5 single crystal were observed in the region between 0.6 and 2.4 μm at room, 77, and 4.2 K temperatures. Five pure electronic transitions were assigned at 11 665, 9772, 8950, 6643, and 4300 cm−1. The energy levels associated with these transitions were identified as the splittings of the 5f1 ground configuration under the influence of the spin–orbit coupling and a crystal field of C2v symmetry. The number of crystal field parameters was reduced by assuming the point-charge model where the positions of the ions were determined by X-ray crystallography. Then, the crystal field parameters and the spin–orbit coupling constant were calculated to be [Formula: see text],[Formula: see text], [Formula: see text], and ξ = 1760 cm−1. The vibronic analysis showed that the 90, 200, and 320 cm−1 modes were similar to the T2u(v6), T1u(v4), and T1u(v3) of an UCl6− octahedron, respectively.

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