Multinuclear Magnetic Resonance Investigation of Crystalline Alkali Molybdates

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• 作者：John E. C. Wren ; Brandon J. Greer ; Vladimir K. Michaelis ; Carolyn S. Higman ; Scott Kroeker
• 刊名：Inorganic Chemistry
• 出版年：2015
• 出版时间：October 19, 2015
• 年：2015
• 卷：54
• 期：20
• 页码：9853-9861
• 全文大小：436K
• ISSN：1520-510X

文摘

A variety of crystalline alkali molybdate phases are characterized by ²³Na, ¹³³Cs, and ⁹⁵Mo magic-angle-spinning nuclear magnetic resonance (MAS NMR) to provide spectroscopic handles for studies of devitrification products in borosilicate nuclear waste glasses. The NMR parameters obtained from line-shape simulations are plotted as a function of various structural parameters to discern trends that may prove useful in the determination of unknown phases. These are applied to Cs₃Na(MoO₄)₂, the most common precipitate found in cesium- and molybdenum-bearing model nuclear waste glasses, the crystal structure of which has not yet been determined, to provide structural constraints that may guide the refinement of powder X-ray diffraction data.