نتایج جستجو برای: crystal chemistry
تعداد نتایج: 263957 فیلتر نتایج به سال:
The crystal structures of two cytochrome c oxidases, one bacterial and one mammalian, offer insights into their roles in oxygen chemistry and as proton pumps.
This book is used by its author, a lecturer in chemistry at the university of Nottingham, England, in a beginning chemistry course. We highly recommend it to all earth scientists. rt deals, in simple and concise language, with the relations of atomic, molecular and crystal structures to physical and chemical properties. This subject is, even nowadays, badly neglected in chemistry teaching in th...
The rational design of crystal structures based on the chemical nature of molecular components, a longstanding and exciting research topic in organic solid state chemistry, is an emerging theme of crystal engineering in inorganic solid state chemistry. In particular, noncentrosymmetric structures, or those lacking inversion symmetry, are important for future technologies that are based on piezo...
A "crystal hotel" microfluidic device that allows crystal growth in confined volumes to be studied in situ is used to produce large calcite single crystals with predefined crystallographic orientation, microstructure, and shape by control of the detailed physical environment, flow, and surface chemistry. This general approach can be extended to form technologically important, nanopatterned sing...
The structure solution from powder diffraction has undergone an intense evolution during the last 20 years, but is far from being routine. Current challenges of powder crystallography include ab initio crystal structure determination on real samples of new materials with specific microstructures, characterization of intermediate reaction products from in situ, in operando studies and novel phas...
Our understanding of the up to 7 orders magnitude partitioning thallium (Tl) between seawater and ferromanganese (FeMn) deposits rests upon two foundations: (1) being able quantify Tl(I)/Tl(III) ratio that reflects extent oxidative scavenging Tl by vernadite (?-MnO2), principle manganate mineral in oxic suboxic environments, (2) determine sorption sites bonding environments Tl(I) Tl(III) comple...
Zirconolite (CaZrTi2O7) has been identified as a candidate ceramic wasteform for the immobilisation and disposal of Pu inventories, which there is no foreseen future use. Here, we provide an ov...
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