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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 19일 (금요일) 11:00~12:30 |
| Code |
MAT.P-474 |
| Subject |
Synthesis and Structural Studies of a New Mixed-valent Two-dimensional Quarternary Sulfide, K2Ta6Pd9S24 |
| Authors |
Sanghyun Bae, Hoseop Yun*
Department of Chemistry, Ajou University, Korea
|
| Abstract |
The new quaternary sulfide, K2Ta6Pd9S24 has been synthesized from elemental powders through alkali metal halide flux methods and it is structurally characterized by single crystal X-ray diffraction techniques. The title compound crystallizes in the space group I2/m. Two crystallographically independent Ta atoms are found and they are surrounded by six S atoms in trigonal prismatic fashions. The Pd atoms are coordinated to four S atoms in square planes. These polyhedra are connected to form a two-dimensional layer, 2∞[Ta6Pd9S242-]. These layers stack on top of each other and the K+ ion reside between the layers to satisfy the charge neutrality. The charge valence of the title compound can be described as [K+]2[Ta4+]2[Ta5+]4[Pd2+]9[S2-]24. In this presentation, a comparison of the title compound with the previously prepared phases, CsTaPd3S6 and Cs2ZrPd3S6 will be discussed. |
| E-mail |
qt8634@ajou.ac.kr |
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123rd General Meeting of the KCS