The optical spectrum of Ba2Zn[Cu]F6

Reinen, D.; Steffen, G.; Hitchman, Michael A.; Stratemeier, Horst; Dubicki, Lucjan; Krausz, Elmars; Riley, Mark J.; Mathies, Horst E.; Recker, K.; Wallrafen, F.

doi:10.1016/0301-0104(91)87012-k

Cited by 21 publications

(61 citation statements)

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“…[26][27][28] The present study can be compared to those cases where Cu͑II͒ is doped into a cubic host. This results in Jahn-Teller distorted tetragonally elongated Cu II L 6 species being formed with local D 4h symmetry, and occurs for the cubic KZnF 3 ͑Ref.…”

Section: E MCD Selection Rulesmentioning

confidence: 99%

The highly resolved electronic spectrum of the square planar CuCl42− ion

Dick

Rahemi

Krausz

et al. 2008

The Journal of Chemical Physics

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Articles you may be interested inAbsence of exchange interaction between localized magnetic moments and conduction-electrons in diluted Er3+ gold-nanoparticles J. Appl. Phys. 115, 17E128 (2014) The low temperature magnetic circular dichroism ͑MCD͒ and electron paramagnetic resonance ͑EPR͒ spectra of Cu͑II͒ doped Cs 2 ZrCl 6 are reported. The Cu͑II͒ ion is incorporated as the square planar copper tetrachloride ion, CuCl 4 2− , which substitutes at the Zr͑IV͒ site in the Cs 2 ZrCl 6 lattice, with a complete absence of axial coordination. Both the EPR and MCD show highly resolved spectra from which it is possible to determine the superhyperfine coupling constants and excited state geometries respectively. The Franck-Condon intensity patterns suggest that there is a substantial relaxation of the host lattice about the impurity ion. For the lowest energy 2 B 1g ͑x 2 -y 2 ͒ → 2 B 2g ͑xy͒ transition, both the magnetic dipole allowed electronic origin as well as vibronic false origins are observed. The high resolution of the spectra allowed the accurate determination of the odd parity vibrations that are active in the spectra. The opposite sign of the MCD of the two components of the 2 E g ͑xz , yz͒ excited state allows this splitting to be determined for the first time. Accurate and unambiguous spectral parameters for the CuCl 4 2− ion are important as it has become a benchmark transition metal complex for theoretical electronic structure calculations.

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Section: E MCD Selection Rulesmentioning

confidence: 99%

The highly resolved electronic spectrum of the square planar CuCl42− ion

Dick

Rahemi

Krausz

et al. 2008

The Journal of Chemical Physics

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“…and three d-d transitions were reported for Cu 2+ (I) [4,5]. The Cu 2+ (II) center with a small proportion in Ba 2 ZnF 6 :Cu 2+ is identified as Cu 2+ at an interstitial site with a square-planar F À coordination and has the ground state 2 B 2 ðjd x 2 Ày 2 SÞ [4,5]. The four SH parameters and one d-d transition were also reported for Cu 2+ (II) [4,5].…”

Section: Introductionmentioning

confidence: 74%

“…and hyperfine structure constants A J , A ? ) and three d-d transitions were reported for Cu 2+ (I) [4,5]. The Cu 2+ (II) center with a small proportion in Ba 2 ZnF 6 :Cu 2+ is identified as Cu 2+ at an interstitial site with a square-planar F À coordination and has the ground state 2 B 2 ðjd x 2 Ày 2 SÞ [4,5].…”

Section: Introductionmentioning

confidence: 96%

“…Such studies, e.g., the electron paramagnetic resonance (EPR) and optical spectra, were carried out on Cu 2+ ion in the tetragonal layered fluoride Ba 2 ZnF 6 [4,5], where two tetragonal Cu 2+ centers with different ground states were identified. The dominant Cu 2+ (I) center is attributed to Cu 2+ replacing Zn 2+ ion at the tetragonally compressed octahedral site and has the ground state 2 A 1 ðjd z 2 SÞ.…”

Section: Introductionmentioning

confidence: 99%

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Studies of the spin-Hamiltonian parameters, d–d transitions and defect structures for two tetragonal Cu2+ centers in Ba2ZnF6:Cu2+ crystal

Zhang

Yang

et al. 2009

Journal of Luminescence

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“…For a 3d 7 ion in the tetragonal octahedral sites of crystals, the figure showing the splitting of the ground term 4 F by the cubic field, the tetragonal field, and the spin-orbit coupling is given in [19 -21]. By using the effective spin S = 1/2 [19 -21], the second-order perturbation formulas of SH parameters based on the cluster approach are written as [22] …”

Section: Calculationmentioning

confidence: 99%

A Study of Spin-Hamiltonian Parameters and Defect Structure for Co²⁺ Ion in the Tetragonal Zn²⁺ Site of Ba₂ZnF₆ Crystal

Lia

Zheng

Yang

2010

Zeitschrift Für Naturforschung A

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The spin-Hamiltonian (SH) parameters (g factors g , g ⊥ and hyperfine structure constants A , A ⊥ ) for the Co 2+ ion in the tetragonal Zn 2+ site of a Ba 2 ZnF 6 crystal are calculated from the secondorder perturbation formulas based on the cluster approach for the SH parameters of 3d 7 ions in tetragonal symmetry with the effective spin S = 1/2. In the calculations, a reduction factor due to the dynamical Jahn-Teller effect is used. The calculated results are in reasonable agreement with the experimental values, suggesting that the dynamical Jahn-Teller effect should be considered here. The defect structure of the Co 2+ center in Ba 2 ZnF 6 :Co 2+ is also obtained from the calculations. The results are discussed.

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The optical spectrum of Ba2Zn[Cu]F6

Cited by 21 publications

References 20 publications

The highly resolved electronic spectrum of the square planar CuCl42− ion

The highly resolved electronic spectrum of the square planar CuCl42− ion

Studies of the spin-Hamiltonian parameters, d–d transitions and defect structures for two tetragonal Cu2+ centers in Ba2ZnF6:Cu2+ crystal

A Study of Spin-Hamiltonian Parameters and Defect Structure for Co²⁺ Ion in the Tetragonal Zn²⁺ Site of Ba₂ZnF₆ Crystal

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The optical spectrum of Ba2Zn[Cu]F6

Cited by 21 publications

References 20 publications

The highly resolved electronic spectrum of the square planar CuCl42− ion

The highly resolved electronic spectrum of the square planar CuCl42− ion

Studies of the spin-Hamiltonian parameters, d–d transitions and defect structures for two tetragonal Cu2+ centers in Ba2ZnF6:Cu2+ crystal

A Study of Spin-Hamiltonian Parameters and Defect Structure for Co2+ Ion in the Tetragonal Zn2+ Site of Ba2ZnF6 Crystal

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A Study of Spin-Hamiltonian Parameters and Defect Structure for Co²⁺ Ion in the Tetragonal Zn²⁺ Site of Ba₂ZnF₆ Crystal