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새로운 사성분계 티오인산염 A0.92Nb2PS10 의 합성과 결정구조 (A= K, Rb, Cs)
- Alternative Title
- Synthesis and Crystal Structure of the New Quaternary Thiophosphates, A0.92Nb2PS10 (A = K, Rb, Cs)
- Author(s)
- 윤우진
- Alternative Author(s)
- Woojin Yoon
- Advisor
- 윤호섭
- Department
- 일반대학원 에너지시스템학과
- Publisher
- The Graduate School, Ajou University
- Publication Year
- 2015-08
- Language
- eng
- Keyword
- thiophosphate; crystal structure
- Alternative Abstract
- New quaternary thiophosphates, A0.92Nb2PS10 (A = K, Rb, Cs) have been synthesized by using reactive alkali metal halide fluxes (KCl, RbCl, CsCl) and structurally characterized by single crystal X-ray diffraction techniques. The crystal structure of A0.92Nb2PS10 are composed of the one-dimensional anionic chain, 1¦∞[Nb2PS100.92-], and alkali metal cations, K+, Rb+, or Cs+ staying in the van der Waals space among the chains through electrostatic interactions. The title compounds are closely related with the well-known stoichiometric phase ANb2PS10 (A = Na, K, Rb, Cs). While both phases share the common linear chains, 1¦∞[Nb2PS101-], the deficiency of cations found in the title compounds have caused the deformation of the chains and thus the chains show a sinusoidal curves. In this presentation, the comparison of the two structures will be discussed along with the relationships between cation stoichiometries and electronic effects on the linear chains.
- Fulltext
- Appears in Collections:
- Graduate School of Ajou University > Department of Energy Systems > 3. Theses(Master)
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