Two new acentric oxycarbonates NaLiMO(CO) (M = W and Mo) were synthesized via a conventional solid-state route. Their structure was determined from X-ray diffraction data on single crystals. NaLiMO(CO) (M = W and Mo) crystallizes in the acentric cubic -43 space group ( ≈ 7.
View Article and Find Full Text PDFA new oxygen-deficient perovskite BaLiNbO□ was synthesized via a conventional solid-state route and compared to the already known perovskite BaLiNbO. The structure of BaLiNbO□ was investigated by means of X-ray and neutron diffraction, TEM, NMR, and XPS. The study of its thermal behavior revealed an unexpected color change when heated to 1400 °C in a sealed platinum tube, with conservation of the initial X-ray structure.
View Article and Find Full Text PDFApple scab, caused by , is a major fungal disease worldwide. Cultivation of scab-resistant cultivars would reduce the chemical footprint of apple production. However, new apple cultivars carrying durable resistances should be developed to prevent or at least slow the breakdown of resistance against races of .
View Article and Find Full Text PDFβ-NaTeO is able to trap CO in a humid atmosphere due to a partial Na/H exchange and the formation of NaHCO. The RT powder X-ray diffraction pattern of the resulting NaH TeO shows broad and narrow hkl lines preventing the structural study. We show by the DIFFaX program that Na/H exchange is topotactic since the structure, as in the mother form, consists of [TeO] chains of TeO octahedra.
View Article and Find Full Text PDFThe present work concerns the tellurate NaTeO which has a 1D structure and could then present a CO capture ability. It has been synthesized in a powder form via a solid-state reaction and structurally characterized by thermal X-ray diffraction experiments, Raman spectroscopy, and differential scanning calorimetry. The room temperature structure corresponds to the β-NaTeO orthorhombic form, and we show that it undergoes a reversible structural transition near 420 °C toward a monoclinic system.
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