E. P. Turevskaya

Bio: E. P. Turevskaya is an academic researcher from Moscow State University. The author has contributed to research in topics: Alkoxide & Crystal structure. The author has an hindex of 16, co-authored 41 publications receiving 610 citations. Previous affiliations of E. P. Turevskaya include Russian Academy of Sciences.

The structure of the LiOMe·2MeOH crystal solvate. A new structural type for tetrameric alkoxides

Abstract: The solvate LiOMe·2MeOH (1) was isolated from a solution of LiOMe in MeOH, its tetrameric unit [Li4(μ-OR)4(μ-ROH)2(ROH)4]·2ROH may be described as two distorted squares [Li2(μ-OR)(μ-ROH)], linked by bridging alkoxy groups and two hydrogen bonds; 1 easily loses the solvate alcohol yielding polymeric LiOMe.

Bimetallic Alkoxides of Barium and Zirconium: Preparation of BaZrO3 Powder

Abstract: Complex formation in solutions of barium and zirconium alkoxides in ROH (R=i-Pr, Et) was studied. A number of bimetallic complexes were isolated, and their structure and properties were studied. The sol-gel method yields a single-phase BaZrO3 powder only wheni-PrOH solutions of the alkoxides are used. In this case, the oxocomplex, BaZrO(OPr-i)4.(1–2)i-PrOH, is the precursor of the mixed oxide.

Direct electrochemical synthesis of metal alcoholates

Abstract: 1. The authors have studied the conditions for electrochemical synthesis of the alcoholates of Ga, Sc, Y, Ge, Ti, Zr, Nb, and Ta with anodic dissolution of the metals in absolute alcohols in the presence of a base electrolyte. The optimal base electrolytes are the salts R4NBr and R4NBF4. The limits of applicability of this synthesis method are determined when various metals are used as the anode. 2. It is postulated that the primary products of anodic oxidation of the metals are alkoxyhalides, the nature of which governs the further direction of the electrode process.

Nanocomposites: synthesis, structure, properties and new application opportunities

Abstract: Nanocomposites, a high performance material exhibit unusual property combinations and unique design possibilities. With an estimated annual growth rate of about 25% and fastest demand to be in engineering plastics and elastomers, their potential is so striking that they are useful in several areas ranging from packaging to biomedical applications. In this unified overview the three types of matrix nanocomposites are presented underlining the need for these materials, their processing methods and some recent results on structure, properties and potential applications, perspectives including need for such materials in future space mission and other interesting applications together with market and safety aspects. Possible uses of natural materials such as clay based minerals, chrysotile and lignocellulosic fibers are highlighted. Being environmentally friendly, applications of nanocomposites offer new technology and business opportunities for several sectors of the aerospace, automotive, electronics and biotechnology industries.

Magnetic, electronic, and structural characterization of nonstoichiometric iron oxides at the nanoscale.

Abstract: We have investigated the structural, magnetic, and electronic properties of nonstoichiometric iron oxide nanocrystals prepared by decomposition of iron(II) and iron(0) precursors in the presence of organic solvents and capping groups. The highly uniform, crystalline, and monodisperse nanocrystals that were produced enabled a full structural and compositional survey by electron microscopy and X-ray diffraction. The complex and metastable behavior of nonstoichiometric iron oxide (wustite) at the nanoscale was studied by a combination of Mossbauer spectroscopy and magnetic characterization. Deposition from hydrocarbon solvents with subsequent self-assembly of iron oxide nanocrystals into superlattices allowed the preparation of continuous thin films suitable for electronic transport measurements.

Processing, Structure, Properties, and Applications of PZT Thin Films

Abstract: There has been a resurgence of complex oxides of late owing to their ferroelectric and ferromagnetic properties. Although these properties had been recognized decades ago, the renewed interest stems from modern deposition techniques that can produce high quality materials and attractive proposed device concepts. In addition to their use on their own, the interest is building on the use of these materials in a stack also. Ferroelectrics are dielectric materials that have spontaneous polarization in certain temperature range and show nonlinear polarization–electric field dependence called a hysteresis loop. The outstanding properties of the ferroelectrics are due to non-centro-symmetric crystal structure resulting from slight distortion of the cubic perovskite structure. The ferroelectric materials are ferroelastic also in that a change in shape results in a change in the electric polarization (thus electric field) developed in the crystal and vice versa. Therefore they can be used to transform acoustic wav...