From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions of Li₂Mo₃TeO₁₂ to Polyoxometalates

Abstract

What is the most significant result of this study?Ametastable layered tellurite, Li 2 Mo 3 Te O 12 ,inanextremely strained environment has been synthesized. Also, Li + -exchange-driven transformation reactions of Li 2 Mo 3 TeO 12 to polyoxometalates have been successfully monitored by simple lab-source X-ray diffraction. Through the obtained kinetic data, ap lausible mechanism for the solid-state transformation reactions has been suggested. We believe that this new finding could be utilized in discovering novel metastable materials and their phase transitions. What was the inspiration for this cover design?We tried to focus on the observation of solid state transformation reactions using X-ray diffraction measurements. The stacked Jenga blocks with unstable structures and highly organized structures, depict the metastable tellurites and the thermodynamically stable polyoxometalates, respectively.W ea lso represented al ab source X-ray as as hining light to monitor the transformation reactions. Finally,t he background was drawn to celebrate PyeongChang 2018 Winter Olympic Games. What other topics are you working on at the moment?In addition to our research on kinetic studies of solid state reactions, we are trying to rationally design solid state materials with noncentrosymmetric (NCS) crystal structures. To discover functional NCS materials more effectively,w ea re investigating critical factors influencing framework structure and macroscopic centricity.W e also explore av ariety of NCS solid solutions to elucidate the origin of the related interesting properties.Invited for the cover of this issue is the group of Kang Ming Ok at the Chung An University in Seoul. The image depicts stacked Jengab locks with unstable structures and highly organized structures, depicting the metastable tellurites and the thermodynamically stable polyoxometalates, respectively.R ead the full text of the article at

Mo6+ Cation Enrichment of the Structure Chemistry of Iodates: Syntheses, Structures, and Calculations of Ba(MoO2)2(IO3)4O, Ba3[(MoO2)2(IO3)4O(OH)4]·2H2O, and Sr[(MoO2)6(IO4)2O4]·H2O

“…3) Å, which are similar to those found in Bi 2 (IO 4 )(IO 3 ) 3 . 33 The corrugated layered structure of compound 3 is very similar to that of Li 2 Mo 3 TeO 12 , 34 35 The two short S4). In addition, the calculated BVS (H is not calculated) for O( 8) is 0.24, which indicates the existence of −OH groups (Table S5).…”