|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Synthesis, structures, and luminescent properties of new sodium rare-earth metal(III) chloride oxotellurates(IV), Na2Ln3Cl3[TeO3]4 (Ln = Sm, Eu, Gd, Tb, Dy and Ho)статья
- Авторы: Charkin Dmitri O., Sabine Zitzer, Stefan Greiner, Dorofeev Sergey G., Olenev Andrei V., Peter Berdonosov, Thomas Schleid, Dolgikh Valery A.
- Журнал: Zeitschrift für anorganische und allgemeine Chemie
- Том: 643
- Год издания: 2017
- Издательство: Wiley - V C H Verlag GmbbH & Co.
- Местоположение издательства: Germany
- DOI: 10.1002/zaac.201700227
- Аннотация: Six new sodium rare-earth metal(III) chloride oxotellurates(IV), Na2Ln3Cl3[TeO3]4, isostructural to Na2Y3Cl3[TeO3]4, were synthesized by flux techniques and characterized by single-crystal XRD. The compounds crystallize in the monoclinic space group C2/c with lattice constants a = 23.967(1), b = 5.6342(3), c = 16.952(1) Å, β = 134.456(5)° for Ln = Sm, a = 23.932(2), b = 5.6044(5), c = 17.134(1) Å, β = 135.151(6)° for Ln = Eu, a = 23.928(1), b = 5.5928(1), c = 17.1133(8) Å, β = 135.366(3)° for Ln = Gd, a = 23.907(1), b = 5.569(3), c = 16.745(1) Å, β = 134.205(3)° for Ln = Tb, a = 23.870(1), b = 5.547(3), c = 16.665(1) Å, β = 134.102(3)° for Ln = Dy and a = 23.814(1), b = 5.526(3), c = 16.626(1) Å, β = 134.016(3)° for Ln = Ho and Z = 4. Their crystal structure can be considered as a framework built of intergrowing Ln-O and Na-(O,Cl) slabs with channel walls decorated by tellurium atoms of [TeO3]2- groups. The luminescent properties of the new compounds due to the Ln3+ cations are described and discussed. We also discuss the crystal chemistry of various alkali-metal rare-earth metal(III) halide oxochalcogenates(IV)
- Добавил в систему: Бердоносов Петр Сергеевич