Results 341 to 350 of about 19,858,126 (398)

The Crystal Structure of Potassium Chloroplatinate. The Crystal Structure of Diaspore. The Crystal Structure of Lepidocrocite

1935
Crystals of potassium chloroplatinate, studied by means of spectral and Laue photographs, are shown to have the potassium chlorostannate structure with d100 = 9.73 Å and u = 0.240 = 0.005. The reported value of u = 0.16 is shown to be incorrect, and the theoretical treatment of Jones and Dent which supported this latter value is thereby deprived of its
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Crystals and crystal structures

2015
Abstract This first chapter considers the nature of the crystalline state by constructing crystal structures. It then moves on to look at interstitial, covalent and ionic structures, stacking faults, and twins. It also looks at the crystal chemistry of inorganic compounds, coordination polyhedra, erovskites, tetrahedral, and octahedral ...
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The crystal structure of fornacite*

Zeitschrift für Kristallographie, 1967
Fornacite, Pb2(Cu,Fe)[Cr04(As,P)040H], is monoclinic, with a = 8.101 A, b = 5.893 A, c = 17.547 A, {3 = 110°00', space group P21/c. After making spherical absorption and Lorentz-polarization corrections, a three-dimensional Patterson synthesis was computed and the heaviest atoms located.
G. Cocco, L. FANFANI, P. F. ZANAZZI
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Crystal Structure of Thiolphthalide

Journal of Pharmaceutical Sciences, 1968
The crystal and molecular structure of thiolphthalide has been determined by X-ray crystallographic analysis. The crystals of this compound are orthorhombic (space group P 2 1 2 1 2 1 ) with cell dimensions of a = 4.104 A., b = 11.835 A., and c = 14.602 A.
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Crystal Structure of Weddellite

Science, 1964
On the basis of x-ray analysis of its crystal structure, weddellite (the tetragonal crystal of calcium oxalate polyhydrate) has been determined to be a zeolitic dihydrate salt. The oxalate ion has at least the symmetry 2mm and possibly the symmetry mmm .
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The crystal structure of triphenylallyltin

Journal of Organometallic Chemistry, 1985
Abstract The crystal structure of (C 6 H 5 ) 3 SnCH 2 CHCH 2 has been determined. The asymmetric unit consists of two molecules of triphenylallyltin having virtually the same conformation. Their geometrical parameters exclude p π - d π bonding between the metal and the allyl double bond, and seem to be in a better agreement with a σ-π ...
GANIS, P, FURLANI, DONATELLA, MARTON, DANIELE, TAGLIAVINI, GIUSEPPE, VALLE, G.   +4 more
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Crystal Structure

Problems in Structural Inorganic Chemistry, 2018
This chapter presents 47 problems covering the subject of crystal structure, along with their corresponding solutions.
Wai-Kee Li, H. Lee, D. Ng, Yu‐San Cheung, K. K. Mak, T. Mak   +5 more
semanticscholar   +1 more source

Symmetry Relationships between Crystal Structures

In crystal chemistry and crystal physics, the relations between the symmetry groups (space groups) of crystalline solids are of special importance.
Ulrich Müller, Gemma de la Flor
semanticscholar   +1 more source

Crystal Structure of Ettringite

Nature, 1968
ETTRINGITE (Ca6[Al(OH)6]2(SO4)3.26H2O) occurs as a natural mineral, and is technically important as a hydration product of Portland and supersulphated cements and in its use, as satin white, for coating paper. It forms hexagonal, prismatic crystals which in synthetic material are often highly elongated.
A. E. Moore, H. F. W. Taylor
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Crystal structure of calmodulin

Journal of Inorganic Biochemistry, 1986
The crystal structure of calmodulin has been determined to 3.6 A resolution. At this resolution the polypeptide chain can be traced. Some of the side chains have tentatively been identified. Refinement of the structure with x-ray diffraction data measured to 1.65 A resolution is continuing. As reported by Babu et al.
R H, Kretsinger, S E, Rudnick, L J, Weissman   +2 more
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