منابع مشابه
Control of the properties of xanthan/glucomannan mixed gels by varying xanthan fine structure.
The interaction of native xanthan gum, deacetylated xanthan gum and depyruvated xanthan gum with konjac glucomannan has been studied using DSC and controlled stress rheometry. In the absence of electrolyte the DSC cooling curves for native xanthan and deacetylated xanthan showed a single peak and there was a corresponding sharp increase in the storage modulus indicating gel formation. It is app...
متن کاملCrystal Structure of the Superconducting Phase of Sulfur Hydride
A superconducting critical temperature above 200 K has recently been discovered in H2S (or D2S) under high hydrostatic pressure1, 2. These measurements were interpreted in terms of a decomposition of these materials into elemental sulfur and a hydrogen-rich hydride that is responsible for the superconductivity, although direct experimental evidence for this mechanism has so far been lacking. He...
متن کاملElectronic structure of the Magnesium hydride molecular ion
In this paper, using a standard quantum chemistry approach based on pseudopotentials for atomic core representation, Gaussian basis sets, and effective core polarization potentials, we investigate the electronic properties of the MgH ion. We first determine potential energy curves for several states using different basis sets and discuss their predicted accuracy by comparing our values of the w...
متن کاملStructure and properties of complex hydride perovskite materials.
Perovskite materials host an incredible variety of functionalities. Although the lightest element, hydrogen, is rarely encountered in oxide perovskite lattices, it was recently observed as the hydride anion H(-), substituting for the oxide anion in BaTiO3. Here we present a series of 30 new complex hydride perovskite-type materials, based on the non-spherical tetrahydroborate anion BH4(-) and n...
متن کاملThe Electronic Structure of MgY2H6þ High-Pressure Hydride
The electronic structure of the MgY2H6þ high-pressure hydride has been investigated by means of the full potential linearized augmented plane wave method, and the stability of the octahedral and tetrahedral sites for H atoms has been discussed. The calculation models used were MgY3H8{12, corresponding to H/M = 2–3. From the calculation of the density of states for MgY3H11, it was found that the...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1961
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.15-1186