| Autor: |
Robert, Rintu, Balisetty, Vineela, Mohanrao, Kalapaneni, Mannamala Pappan, Minimol, Mangalassery, Shilpa, Rao, D. Narayana, Vidyasagar, Kanamaluru |
| Zdroj: |
Inorganic Chemistry; May 2023, Vol. 62 Issue: 20 p7890-7897, 8p |
| Abstrakt: |
Eight quaternary selenites and tellurites of antimony(V), ASb3X2O12(A = K, Rb, Cs, Tl; X = Se, Te), have been synthesized by solid state reactions and structurally characterized by single crystal X-ray diffraction. They are isostructural compounds, which crystallize in the polar noncentrosymmetric P63mcspace group with hexagonal unit cell parameter values in the ranges of a= 7.1538(1)–7.2429(1) Å and c= 11.8978(4)–12.0478(3) Å. Their noncentrosymmetric layered structure consists of hexagonal-tungsten-oxide-related (Sb3X2O12)−layers interleaved with A+ions. They have optical band gap values of 2.90–4.46 eV and showed powder second harmonic generation response equivalent to 1.0–37.2 × KDP. |
| Databáze: |
Supplemental Index |
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