JOURNAL OF CHILEAN CHEMICAL SOCIETY

Vol 62 No 1 (2017): Journal of the Chilean Chemical Society
Original Research Papers

SYNTHESIS, CRYSTAL STRUCTURE AND PHOTOLUMINESCENCE PROPERTIES OF A NEW RARE-EARTH CARBONATE Na3Eu(CO3)3·6H2O

Rong-Hua Zhang
College of Chemistry and Chemical Engineering, Henan Polytechnic University
Dan Zhao
College of Chemistry and Chemical Engineering, Henan Polytechnic University
Min Huang
College of Chemistry and Chemical Engineering, Henan Polytechnic University
Rui-Juan Yang
College of Chemistry and Chemical Engineering, Henan Polytechnic University
Fa-Xue Ma
College of Chemistry and Chemical Engineering, Henan Polytechnic University
Yun-Chang Fan
College of Chemistry and Chemical Engineering, Henan Polytechnic University
Published June 5, 2017
Keywords
  • Hydrothermal,
  • Carbonate,
  • X-ray diffraction,
  • Photoluminescence
How to Cite
Zhang, R.-H., Zhao, D., Huang, M., Yang, R.-J., Ma, F.-X., & Fan, Y.-C. (2017). SYNTHESIS, CRYSTAL STRUCTURE AND PHOTOLUMINESCENCE PROPERTIES OF A NEW RARE-EARTH CARBONATE Na3Eu(CO3)3·6H2O. Journal of the Chilean Chemical Society, 62(1). Retrieved from https://jcchems.com/index.php/JCCHEMS/article/view/158

Abstract

A new sodium europium carbonate hydrate, Na3Eu(CO3)3·6H2O, has been prepared using the hydrothermal method, and its structure was determined by single crystal X-Ray diffraction analysis for the first time. It crystallizes in the polar hexagonal space group P63 with a = 11.382(9) Å, c = 5.989(5) Å, V = 672.06(9) Å3, Z = 2, Mr = 509.06, Dc = 2.516 g/cm3, F(000) = 492, μ(MoKα) = 4.84 mm-1, R1 = 0.015 and wR = 0.038. The structure features a three-dimensional(3D) framework composed of planar (CO3)2- triangles, Eu3+ ions and Na+ ions, which delimits 1D infinite chains with a hexangular star appearance along the c-axis. The IR spectrum and the self-activated photoluminescence properties were studied. Under the excitation of near UV light (395nm), it shows strong red emission at 618 nm with a lifetime of 348.7 μs. Present research indicates that Na3Eu(CO3)3·6H2O is a promising red phosphor for white light-emitting diodes. 

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