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Crystal structures of a group II chaperonin reveal the open and closed states associated with the protein folding cycle
Crystal structures group II chaperonin reveal closed states associated protein folding cycle
2015/12/11
Chaperonins are large protein complexes consisting of two stacked multisubunit rings, which open and close in an ATP-dependent manner to create a protected environment for protein folding. Here, we de...
Displacement-sensitive photonic crystal structures based on guided resonance in photonic crystal slabs
Displacement-sensitive photonic crystal structures guided resonance photonic crystal slabs
2015/8/11
We introduce a mechanically tunable photonic crystal structure consisting of coupled photonic crystal slabs. Using both analytic theory, and first-principles finite-difference time-domain ...
Mineralogy and Human Welfare:Applications in Geology, Petrology, Environmental Science and Industry; Catalog of Crystal Structures
Mineralogy Human Welfare Geology Petrology Environmental Science
2011/11/11
I lived for 17 years at Barn Close Farm, Fritchley, Derbyshire, England, UK at the southern end of the Pennine Chain. I retired on 9/30/05 as Professor of Physical Sciences at the University of Chicag...
Dense packing crystal structures of physical tetrahedra
Dense packing crystal structures physical tetrahedra
2010/11/24
We present a method for discovering dense packings of general convex hard particles and apply it to study the dense packing behavior of a one-parameter family of particles with tetrahedral symmetry re...
Synthesis and characterisations of some new 2,4-dihydro-[1,2,4]- triazol-3-one derivatives and X-ray crystal structures of 4-(3-phenylallylideneamino)-5-thiophen-2-yl-methyl-2,4-dihydro-[1,2,4]triazol-3-one
bromo acetophenone X-ray crystallography antimicrobial activity
2010/12/3
Compounds 2 were synthesised via the reaction of 4-amino-5-thiophen-2-yl-methyl-2,4-dihydro-[1,2,4]-triazol-3-one (1) with aldehydes. Compounds 3 and 4 were obtained from compounds 2 with bromo acetop...
Synthesis and Characterizations of Some New 2,4-Dihydro-[1,2,4]-triazol-3-one Derivatives and X-Ray Crystal Structures of 4-(3-Phenyl allidene amino)-5-thiophen-2-yl-methyl-2,4-dihydro-[1,2,4]triazol-3-one
1,2,4-Triazole aldehydes ethyl bromoacetate bromo acetophenone
2010/10/19
Compounds 2 were synthesised via the reaction of 4-amino-5-thiophen-2-yl-methyl-2,4-dihydro-[1,2,4]-triazol-3-one (1) with aldehydes. Compounds 3 and 4 were obtained from compounds 2 with bromo acetop...
Synthesis, characterization, crystal structures, and antibacterial activity of some new 1-(3,4,5-trimethoxybenzoyl)-3-aryl thioureasreas
1-(3,4,5-trimethoxy)benzoyl-3-arylthioureas antibacterial crystal structure
2010/10/18
Synthesis of some novel 1-(3,4,5-trimethoxy)benzoyl-3- arylthiourea derivatives (1a-o) was accomplished in 2 steps. The synthetic route involves the reaction of 1-(3,4,5-trimethoxy)benzoyl chloride wi...
Symmetry constraints and modularity:tools to model inorganic crystal structures
symmetry constraints inorganic crystal structures
2011/11/11
Symmetry constraints and modularity:tools to model inorganic crystal structures.
Three-Dimensional Crystal Structures of Illite-Smectite Minerals in Paleozoic K-Bentonites from the Appalachian Basin
Bentonite Cis-Vacant Octahedra Crystal Structure Illite-Smectite Polytype Rotational Disorder X-ray Diffraction
2011/12/2
Abstract: The three-dimensional crystal structures of illite-smectite (I-S) in K-bentonite samples from the Appalachian Basin are characterized by rotational disorder in the stacking sequence of 2:1 i...
Crystal structures of two partially dehydrated chlorites: The "modified" chlorite structure
Crystal structures two partially dehydrated chlorites:The "modified" chlorite structure
2012/4/1
Chromian clinochlore-IIb-4 (triclinic) and IIb-2 (monoclinic) polytypes from the Day Book Body,
North Carolina, were heated to 650 ?C for 5 hours and air quenched. Single-crystal X-ray refinements
o...
Rigid unit modes in crystal structures with octahedrally coordinated atoms
Rigid crystal structures octahedrally coordinated atoms
2012/3/31
The rigid unit mode analysis was initially developed to understand the phase transitions in aluminosilicate minerals containing corner-linked tetrahedra. Here the model is applied to a range of minera...
Crystal structures of the {011}, {610}, and {010} growth sectors in brewsterite
Crystal structures {011} {610 {010} growth sectors brewsterite
2012/4/9
Crystal structures were determined by single-crystal X-ray methods for the {Oil}, {61O}, and {01O} growth sectors ofbrewsterite from Strontian, Scotland. Refinements f/?w = 4.3-6.6%) showed that all t...
Interrelation of Magnetic Properties with the Crystal Structures of MeFeSe (Me = Ti; V; Cr; Fe; Co; Ni) Compounds
Magnetic Properties Crystal Structures MeFeSe
2010/4/19
Magnetization of MeFe2Se4 (Me = Ti; V; Cr; Fe; Co; Ni) compounds at low temperatures has been investigated. It is shown that these compounds are ferrimagnetics with low values of specific magnetizatio...