Stable crystal structures of wurtzite and recently discovered rhombohedral polymorphs boron phosphide were obtained based on chemistry rationale unconstrained geometry optimization calculations within density functional theory.

Abstract Five povondraite crystals from San Francisco Mine, Villa Tunari, Bolivia, have been structurally and chemically characterised by single-crystal X-ray diffraction electron microprobe analysis. For the first time, this characterisation is accompanied Mössbauer spectroscopic infrared data, which show exclusive presence of Fe 3+ at both octahedrally-coordinated Y Z sites as well slight dis...

The traditional construction of materials is usually driven by classical synthetic transformations involving the making and breaking of covalent bonds. These processes often require high energy input and highly reactive and hazardous materials. In natural systems, one typically encounters synthetic control schemes that are based on entropic forces rather than these human-designed enthalpic mani...

School of Chemistry, Faculty of Engineering and Physical Sciences, University of Manchester, Brunswick Street, Manchester M13 9PL, England, Department of Biology, University of Konstanz, 78457 Konstanz, Germany, Crystal and Structural Chemistry, Bijvoet Center for Biomolecular Research, Faculty of Science, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands, and Manchester Institu...

College of Life Information Science & In University, Hangzhou 310018, China. E-ma State Key Laboratory of Crystal Materials, Materials, Shandong University, 27 Shand E-mail: [email protected] Department of Chemistry and Biochemist Street, Santa Cruz, California 95064, USA Stem Cell and Tissue engineering School of 310018, China Department of Chemistry, Georgia State Un The Institute of Develop...

The Key Laboratory of Bioorganic Phos (Ministry of Education), Department of C 100084, China. E-mail: [email protected] Beijing National Laboratory for Molecular Earth Materials Chemistry and Applic Computational Chemistry, College of Chem University, Beijing 100871, China † This work is dedicated to Professor Thom birthday. ‡ Electronic supplementary information (E crystal structure determinat...

In this review we describe recent advances in transition metal oxyhydride chemistry obtained by topochemical routes, such as low temperature reduction with metal hydrides, or high-pressure solid-state reactions. Besides the crystal chemistry, magnetic and transport properties of the bulk powder and epitaxial thin film samples, the remarkable lability of the hydride anion is particularly highlig...

Hexahomotrioxacalix[3]arenes, commonly called oxacalix[3]arenes, were first reported in 1962. Since then, their chemistry has been expanded to include numerous derivatives and complexes. This review describes the syntheses of the parent compounds, their derivatives, and their complexation behaviour towards cations. Extraction data are presented, as are crystal structures of the macrocycles and ...

“Nano” of course means “billionth of”. Nanoscience has been defined as the science of matter with characteristic lengths ranging from 1nm to 100nm. In practice, nanoscience is a collection of portions of traditional disciplines. That is, it is a union of subdisciplines. Here are just a few of the component subdisciplines: materials chemistry, polymer science, colloid chemistry, crystal growth, ...

The magnetic properties of spinel nanoparticles are determined by crystal chemistry issues such as cation distribution and oxidation states. The cation distribution and oxidation state of Mn-Fe spinel nanoparticles have been systematically studied at various temperatures by using neutron diffraction and electron energy loss spectroscopy, respectively. The Mn-Fe spinel nanoparticles prepared by ...