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(1) I. P. Roof, M. D. Smith, S. Park and H.-C. zur Loye J. Am. Chem. Soc ., 2009 , 131 (12).

Synthesis of Complex Metal Oxides Hans-Conrad zur Loye, University of South Carolina Research Foundation DMR 0804209.

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(1) I. P. Roof, M. D. Smith, S. Park and H.-C. zur Loye J. Am. Chem. Soc ., 2009 , 131 (12).

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  1. Synthesis of Complex Metal Oxides Hans-Conrad zur Loye, University of South Carolina Research Foundation DMR 0804209 This project focuses on the utilization of molten hydroxides in sealed silver tubes as a route for synthesizing high quality single crystals of complex early transition metal containing oxides. Our group works on achieving a fundamental understanding of the reactivity of lanthanides and early transition metals in our unique silver tube approach, which has resulted in the preparation of over 100 new compositions with a variety of new structure types and novel an enhanced properties, such as photoluminescence. Our recent advances include the single crystal growth of a new family of complex oxides: LnKNaMO5 (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, M = Nb, Ta) that crystallize in a new structure type and that exhibit unusual room temperature photoluminescence, which has a potential application in solid state lighting. LaKNaTaO5 The crystal structure (left) of the LnKNaMO5 (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, M = Nb, Ta) series. LaO8 cubes are shown in gray, Nb/TaO5 square pyramids are in yellow, Na+ atoms are shown in green, K+ are shown in blue and O2- as red spheres. An SEM image (right) of a typical crystal of the series. The unusually high symmetry environment of the rare earth is highlighted in the expanded view. (1) I. P. Roof, M. D. Smith, S. Park and H.-C. zur Loye J. Am. Chem. Soc., 2009, 131 (12). (2) I. P. Roof, T.-C. Jagau, W. G. Zeier, M. D. Smith and H.-C. zur Loye Chem. Mater., 2009, 21 (9).

  2. EuKNaNbO5 GdKNaNbO5 TbKNaNbO5 EuKNaTaO5 Intensity, a.u. Eu2O3 Charge Transfer 7F0 -5L6 7F0 -5Gj 7F0 -5L4 7F1 -5D1 7F0 -5Lj 7F0 -5D2 7F0 -5D3 7F0 -5D1 Synthesis of Complex Metal Oxides Hans-Conrad zur Loye, University of South Carolina Research Foundation, DMR 0804209 Room Temperature Photoluminescence of the LnKNaMO5 Series ! Education Graduate Students (2) Irina P. Roof, Qingbiao Zhao Undergraduate Students (2) Adam Fox, Chavis Stackhouse Post Doctoral Fellows (1) Dr. Muktha Bharathy (1) I. P. Roof, M. D. Smith, S. Park and H.-C. zur Loye J. Am. Chem. Soc., 2009, 131 (12). (2) I. P. Roof, T.-C. Jagau, W. G. Zeier, M. D. Smith and H.-C. zur Loye Chem. Mater., 2009, 21 (9).

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