English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The electron paramagnetic resonance (EPR) parameters ($g$ factors $g_{i}$ andthe hyperfine structure constants ${{A}}_{{i}}$, ${i} = {x}, {y}, {z}$) areinterpreted by using the perturbation formulae for a $3{d}^{9}$ ion inrhombically ({D}$_{2h}$) elongated octahedra. In the calculated formulae, thecrystal field parameters are set up from the superposition model, and thecontribution to the EPR parameters from the admixture of $d$-orbitals in theground state wave function of the Cu$^{2+}$ ion was taken into account. Basedon the calculation, local structural parameters of the impurity Cu$^{2+}$center in Cd$_{2}$(NH$_{4}$)$_{2}$(SO$_{4}$)$_{3}$ (CAS) crystal were obtained(i.e., ${R}_{{x}}\approx 2.05$ {\AA}, ${R}_{{y}} \approx 1.91$ {\AA},${R}_{{z}} \approx 2.32$ {\AA}). The theoretical EPR parameters based on theabove Cu$^{2+}$-O$^{2-}$ bond lengths in CAS crystal show a good agreement withthe observed values. The results are discussed.

Theoretical studies of the local structures and EPR parameters for Cu$^{2+}$ center in Cd$_{2}$(NH$_{4}$)$_{2}$(SO$_{4}$)$_{3}$ single crystal