ChemInform Abstract: Structural Properties and Singular Phase Transitions of Metallic Pr0.50Sr0.50CoO3 Cobaltite.

Two successive magnetic transitions of Pr_0.50Sr_0.50CoO₃ contrast with the single ferromagnetic transition in other Ln_0.50Sr_0.50CoO₃ compounds.     

ChemInform Abstract: Structural and Thermal Properties of the Tetragonal Cobalt Manganese Spinels MnxCo3-xO4 (1.4 < x < 2.0).

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.     

ChemInform Abstract: Structural Phase Transitions in EuNbO3 Perovskite.

Polycrystalline EuNbO₃ samples are prepared by solid state reaction of stoichiometric amounts of Eu₂O₃ and Nb₂O₃ (air, 1400 °C, 1 d) to form Eu₃NbO₇ which in a second step is sintered with stoichiometric amounts of NbO₂ and Nb (Mo foil enwrapped in evacuated silica tubes, 1200 °C, 12 h).     

ChemInform Abstract: Preliminary Crystal Structure of Mixed-Valency Sr4Ni3O9, the Actual Formula of the so-called Sr5Ni4O11.

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.     

ChemInform Abstract: Pressure‐Induced Structural and Electronic Transition in Sr2ZnWO6 Double Perovskite.

Polycrystalline Sr₂ZnWO₆ is prepared by staged calcination of stoichiometric amounts of SrCO₃, ZnO, and WO₃ in air (Al₂O₃ crucible, 1.     

ChemInform Abstract: Pressure‐Induced Phase Transitions of β‐Type Pyrochlore CsTaWO6.

Polycrystalline CsTaWO₆ is prepared by calcination of stoichiometric amounts of Cs₂CO₃, Ta₂O₅, and WO₃ in air (1.     

ChemInform Abstract: Low‐Temperature Cationic Rearrangement in a Bulk Metal Oxide.

Cationic rearrangement in bulk Mn₂FeMoO₆ at 150—300 °C leads to a transition from the Ni₃TeO₆‐type to an ordered ilmenite structure, and dramatic changes of the electrical and magnetic properties as evidenced by powder X‐ray and neutron diffraction, and second harmonic generation.     

ChemInform Abstract: Order—Disorder Transition Involving the A‐Site Cations in Ln3+Mn3V4O12 Perovskites.

LnMn₃V₄O₁₂ (Ln: La, Nd, Gd, Y, Lu) perovskites are prepared by solid state reactions of stoichiometric amounts of Ln₂O₃, Mn₂O₃, V₂O₃, and V₂O₅ (gold capsules, 9 GPa, 900 °C, 30 min).     

ChemInform Abstract: Structural Phase Transitions in a New Compound Eu2AgGe3.

Eu₂AgGe₃ is prepared by high‐frequency induction melting of stoichiometric amounts of the elements (sealed Ta ampoules; 1.     

ChemInform Abstract: Temperature Induced Phase Transition of CaMn0.5Zr1.5(PO4)3 Phosphate.

In view of a known structural phase transition at 800—875 °C and the by 10 times increased luminescence of Mn²⁺ in the high‐temperature phase, low‐ (LT) and high‐temperature (HT) polymorphs of CaMn_0.5Zr_1.5(PO₄)₃ are prepared by sol—gel reaction of Mn(O‐Ac)₂, Ca(NO₃)₂, ZrOCl₂, and NH₄H₂PO₄ in ethylene glycol followed by a final annealing (700 or 900 °C, 20 h, resp.).     

ChemInform Abstract: Strontium Magnesium Phosphate,Sr2+xMg3‐xP4O15 (x ≈ 0.36), from Laboratory X‐Ray Powder Data.

The title compound is synthesized by solid state reaction of SrCO₃, MgO, and (NH₄)₂HPO₄ (air, 1303 K, 4 h and 1323 K, 4 h, 90% yield) and its structure is determined by powder XRD.     

ChemInform Abstract: Gold-Tin Ordering in SrAu2Sn2.

The solid solutions SrAu_xSn_4-x (1.7 ≤ x ≤ 2.2) are prepared by high-frequency melting of the elements (Nb ampules, 950—1150 K, 2—12 h).     

New Process of Preparation,X‐Ray Characterization,Structure and Vibrational Studies of a Solid Solution LiTiOAs1‐xPxO4 (0 ≤ x ≤ 1).

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.     

ChemInform Abstract: Rational Syntheses and Structural Characterization of Sulfur‐Rich Phosphorus Polysulfides: α‐P2S7 and β‐P2S7.

The polysulfides α‐ and β‐P₂S₇ are synthesized by heating stoichiometric mixtures of P₄S₃ and sulfur in the presence of catalytic amounts of anhydrous FeCl₃ as mineralizer (evacuated silica tube, 250 °C, 10 d).     

ChemInform Abstract: First-Principles Calculation of Electronic,Optical, and Structural Properties of α-Al2O3

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.