EuPtPb and SrPtPb-lead-based intermetallics with YRhSn/NdRhSn-type polyanionic platinum-lead 3D frameworks.

Two platinide plumbides, EuPtPb and SrPtPb, were discovered using high-temperature exploratory synthesis and flux-assisted crystal growth. Their crystal structures were determined from single-crystal X-ray diffraction. Both compounds crystallize in the orthorhombic system; EuPtPb belongs to the YRhSn structure type (2, = 4.

New iodate fluoride RbCe(IO)F with nonlinear optical properties.

New noncentrosymmetric cerium(IV) iodate fluoride RbCe(IO)F was prepared employing a hydrothermal technique. The compound crystallizes in the 2 space group (#36) with cell parameters = 11.1518(6) Å, = 8.

Extending interstitial tetrelides into carbides: synthesis and crystal and electronic structures- of RECoAlC (RE = La, Pr, Nd).

New quaternary compounds RECoAlC (RE = La, Pr, Nd) of the filled WCoB structure type were synthesized by the reaction of samples with the nominal composition RE40Co40Al20 (RE = La, Pr, Nd) and carbon. Single crystal X-ray diffraction data show that the RECoAlC compounds crystallize in a body-centered orthorhombic space group (12) with = 2 and = 4.1841(11) Å, = 6.

Polytypism of Ln(SeO)(HSeO)·2HO compounds: synthesis and crystal structure of the first monoclinic modification of Nd(SeO)(HSeO)·2HO, DFT calculations and order/disorder description.

Compounds with the general formula Ln(SeO)(HSeO)·2HO, where Ln = Sm, Tb, Nd and Lu, are characterized by orthorhombic symmetry with space group P222 and unit-cell parameters in the ranges a ∼ 6.473-6.999, b ∼ 6.

Synthesis, Crystal, and Electronic Structure of (HpipeH)[SbI](I), with I Molecules Linking SbX Dimers into a Polymeric Anion: A Strategy for Optimizing a Hybrid Compound's Band Gap.

In searching for a tool for optimizing the band gap of a hybrid compound capable of serving as a light-harvesting material in lead-free photovoltaics, we synthesized a new polyiodoantimonate (HpipeH)[SbI](I) and analyzed its crystal and electronic structure by application of X-ray crystal structure analysis, Raman and diffuse reflectance spectroscopies, and quantum chemical calculations. It was demonstrated that I molecules link SbI edge-sharing octahedra into zig-zag chains, whereas the organic cations link inorganic anionic chains into a 3D structure featuring a complex pattern of covalent bonds and non-covalent interactions. Overall, these features provide the background for forming the electronic structure with a narrow band gap of 1.

Merging the AuCu- and BaAl-based structure motifs: flux-assisted synthesis, crystal, and electronic structure of CaPtXP phosphide platinides (X = Al, Ti, and Zn).

Three quaternary phosphide platinides, CaPtAlP, CaPtTiP, and CaPtZnP, were synthesized by a high-temperature technique using lead as a flux. According to the single-crystal diffraction data, they are isotypic and crystallize in the tetragonal space group 4/ with = 2 (CaPtAlP: = 3.9893(6) Å, = 26.

Metal-Rich Phosphides Obtained from the Lead Flux: Synthesis, Crystal, and Electronic Structure of SrPtP and BaPtP.

Using a high-temperature ampoule technique and lead metal as a flux, we have grown single crystals and determined crystal structures from single-crystal X-ray diffraction data of two metal-rich phosphides, SrPtP (/, = 6.1472(3) Å, = 25.1713(13) Å, = 6.

Intermetallic Compound ReGaGe with Re- and Ge-Embedded Gallium Clusters: Synthesis, Crystal Structure, Chemical Bonding, and Physical Properties.

Transition metal-based endohedral cluster intermetallic compounds are interesting electron phases, which frequently exhibit superconductivity with a peculiar interplay between the critical temperature and valence electron count. We present a new Re-based endohedral gallium cluster compound, ReGaGe. Its unique crystal structure (4 space group, = 8.

Nickel - p-block metal mixed chalcogenides based on AuCu-type fragments: iodine-assisted synthesis as a way of obtaining new structures.

Two new mixed nickel-gallium chalcogenides, Ni9.39Ga2S2 and Ni5.80GaTe2, and a new mixed nickel-indium telluride, Ni5.

Electron-Precise Semiconducting ReGaGe: Extending the IrIn Structure Type to Group 7 of the Periodic Table.

Intermetallic compounds with semiconducting properties are rare, but they give rise to advanced materials for energy conversion and saving applications. Here, we present ReGaGe, a new electron-precise narrow-gap intermetallic semiconductor. The compound crystallizes in the IrIn structure type (space group 4/, = 6.

Tennantite: multi-temperature crystal structure, phase transition and electronic structure of synthetic CuAsS.

The structure of synthetic tennantite CuAsS was investigated at various temperatures in the 90-293 K range. It crystallizes in space group I{\overline 4}3m. No structural transformation was observed in this temperature range.

Synthesis, electronic structure and physical properties of two new layered compounds, EuFAgSe and EuFAgTe, featuring the active redox pair Eu/Ag.

Systematic studies of the ZrCuSiAs (also LaOAgS or 1111) structure type resulted in the synthesis of two new fluoride chalcogenides, EuFAgSe and EuFAg1-δTe, whereas their sulfide analog, EuFAgS, could not be obtained. Both new compounds are tetragonal, P4/nmm, with cell parameters a = 4.1542(1) Å, c = 9.

Synthesis, crystal and electronic structures of Pt-rich phosphides EuPtP and EuPtP.

Two new ternary Pt-rich phosphides, EuPt6P2 and EuPt3P, have been prepared via a two-step solid state reaction. Their crystal structures have been determined from powder XRD data. EuPt6P2 is isostructural to SrPt6P2 (cubic, Pa3[combining macron], a = 8.

ReGaGe: an intermetallic compound with semiconducting properties and localized bonding.

ReGaGe2 is a new member of the family of intermetallic compounds with non-metallic properties. It displays highly localized covalent bonding patterns. Its electronic structure is governed by mixing of Re d orbitals with the s and p orbitals of Ga and Ge and features the Fermi level falling into the opened band gap, ensuring experimentally confirmed semiconducting properties.

Layered Compounds BaFMgPn (Pn = P, As, Sb, and Bi), Transition-Metal-Free Representatives of the 1111 Structure Type.

Four new transition metal-free pnictide representatives of the LaOAgS structure type were predicted by DFT calculations and found in the BaFMgPn (Pn = P, As, Sb and Bi) family. The compounds adopt the tetragonal space group P4 /nmm with the unit cell parameters a/ c 4.3097(1) Å/9.

ReGaGe: Intermetallic Compound with Pronounced Covalency in the Bonding Pattern.

We report synthesis, crystal and electronic structure, and transport properties of new intermetallic compound ReGaGe, which was obtained by two-step ampule method from the elements. ReGaGe crystallizes in its own structure type (space group I4/ mmm, a = 2.89222(3) Å, c = 15.

From Isolated Anions to Polymer Structures through Linking with I: Synthesis, Structure, and Properties of Two Complex Bismuth(III) Iodine Iodides.

We report the synthesis, crystal structures, and optical properties of two new compounds, KBiI(I)·14HO (1) and (NH)BiI(I)·4.5HO (2), as well as the electronic structure of the latter. They crystallize in tetragonal space group P4/ mmm with the unit cell parameters a = 12.

Structural and Thermodynamic Stability of the "1111" Structure Type: A Case Study of the EuFZnPn Series.

Two new compounds with the LaOAgS structure, EuFZnAs (1) and EuFZnSb (2), were obtained via solid state reaction. Both compounds are tetragonal (P4/nmm) with the cell parameters a = 4.1000(1) Å and c = 9.

Iodobismuthates Containing One-Dimensional BiI4(-) Anions as Prospective Light-Harvesting Materials: Synthesis, Crystal and Electronic Structure, and Optical Properties.

Four iodobismuthates, LiBiI4·5H2O (1), MgBi2I8·8H2O (2), MnBi2I8·8H2O (3), and KBiI4·H2O (4), were prepared by a facile solution route and revealed thermal stability in air up to 120 °C. Crystal structures of compounds 1-4 were solved by a single crystal X-ray diffraction method. 1: space group C2/c, a = 12.

A novel quasi-one-dimensional topological insulator in bismuth iodide β-Bi4I4.

Recent progress in the field of topological states of matter has largely been initiated by the discovery of bismuth and antimony chalcogenide bulk topological insulators (TIs; refs ,,,), followed by closely related ternary compounds and predictions of several weak TIs (refs ,,). However, both the conceptual richness of Z2 classification of TIs as well as their structural and compositional diversity are far from being fully exploited. Here, a new Z2 topological insulator is theoretically predicted and experimentally confirmed in the β-phase of quasi-one-dimensional bismuth iodide Bi4I4.

Long-term outcomes of autologous hematopoietic stem cell transplantation with reduced-intensity conditioning in multiple sclerosis: physician's and patient's perspectives.

High-dose immunosuppressive therapy (HDIT) with autologous hematopoietic stem cell transplantation (AHSCT) is a promising approach to treatment of multiple sclerosis (MS) patients. In this paper, we present the long-term outcomes of a prospective single-center study with the analysis of the safety and efficacy of HDIT + AHSCT with reduced-intensity BEAM-like conditioning regimen in 99 MS patients: mean age-35 years old; male/female-39/60; median Expanded Disability Status Scale (EDSS) = 3.5; 43 relapsing/remitting MS, 56 progressive MS.

Early poststroke rehabilitation using a robotic tilt-table stepper and functional electrical stimulation.

Background. Stroke frequently leaves survivors with hemiparesis. To prevent persistent deficits, rehabilitation may be more effective if started early.

Autologous hematopoietic stem cell transplantation with reduced-intensity conditioning in multiple sclerosis.

High-dose immunosuppressive therapy with autologous hematopoietic stem cell transplantation (AHSCT) is a new and promising approach to multiple sclerosis (MS) treatment. In this article, we present the results of a prospective phase II open-label single-center study with the analysis of the safety and efficacy of high-dose immunosuppressive therapy+AHSCT with reduced-intensity conditioning regimen in 95 patients with different types of MS. The patients underwent early, conventional, and salvage/late transplantation.