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...ill fluoresce in direct sunlight, due to its highly conjugated [[resonance structure]] (See [[Quinoline]])

| ImageName1 = Crystal structure of sodium thiosulfate pentahydrate | Section3 = {{Chembox Structure

| Appearance = white crystalline solid | Section3 = {{Chembox Structure

...al | author=Ren J, Bird LE, Chamberlain PP, ''et al.'' | year=2002 | title=Structure of HIV-2 reverse transcriptase at 2.35-A resolution and the mechanism of re ...</sub>ClF₃NO₂. Efavirenz is a white to slightly pink crystalline powder with a molecular mass of 315.68 g/mol. It is practically [[insoluble

| Section3 = {{Chembox Structure When pure, it is a white to slight yellowish crystalline powder. It is very soluble in [[water]] and is [[hygroscopic]]. It is also

*Skin and skin structure infections ...ancer agent. Indeed, a distinctive feature of drugs based on the quinolone structure is their remarkable ability to target different type II topoisomerase enzym

...mpound—acetylsalicylic acid. They were first to assign to it the correct structure with the acetyl group connected to the phenolic oxygen.<ref>{{de icon}} {{C <!--[[Image:PTGS2 inhibited by Aspirin.png|thumb|Structure of PTGS2 inactivated by Aspirin. In the active site of each of the two mono

| ImageNameL1 = Skeletal structure | ImageNameR1 = Flat structure

| ImageFileL1 = Glucose structure.svg | ImageFile2 = Glucose chain structure.svg

| Appearance = white crystalline solid | Section3 = {{Chembox Structure

| Appearance = white crystalline solid | Section3 = {{Chembox Structure

...dividuals who had taken [[phenacetin]], and was concentrated into a white, crystalline compound with a bitter taste.{{Fact|date=January 2009}} In 1899, paracetamo ==Structure and reactivity==

| Appearance = Colorless/white crystalline solid | Section3 = {{Chembox Structure

...|coauthors=McFarland SA, Meyer EA, Coffman WB, Mumford R |year=1980 |title=Structure activity relationships of selected benzodiazepines as anticonvulsants to lo It is a white, crystalline substance, is very slightly soluble in water and sparingly soluble in alcoh

|image=Tetracycline structure.svg ...Street+Journal&desc=Scientists+Discover+Terramycin's+Secret%3A+Its+Complex+Structure&pqatl=google], in collaboration with Woodward, participated in the two-year

...lence]] of three or more. Examples of diamondoid structures would include crystalline [[diamond]], [[sapphire]], and other stiff structures similar to diamond bu ...an a dozen adamantane cages per molecule <ref name="Dahl"> ''Isolation and Structure of Higher Diamondoids, Nanometer-Sized Diamond Molecules'' J. E. Dahl, S. G

...s=10834–10843|doi=10.1021/ja00053a020|volume=114}}</ref> and named Mobil Crystalline Materials, or MCM-41.<ref name="trewyn2">{{cite journal|author=Brian Trewyn **Other structure-directing agents

...class of materials used in [[stealth technology]] to disguise a vehicle or structure from radar detection. A material's absorbency at a given frequency of radar ...n the 20-centimeter radar band the Allies used. The material had a layered structure and was based on [[graphite]] particles and other [[semiconductive]] materi

...] &mdash; a [[glass]], instead, as there is no [[long-range order]] in the structure.

...materials and things made from them. They may be [[crystalline]] or partly crystalline. They are formed by the action of heat and subsequent cooling.<ref>[http:// ...Glass by definition is not a ceramic because it is an amorphous solid (non-crystalline). However, glass involves several steps of the ceramic process and its mech

...and sulfates can help to reduce corrosive action and deterioration of the structure.<ref>{{Cite web | title= High Performance Cement for High Strength and Extr | title = Hydration, structure, and properties of blast furnace slag cements, mortars, and concrete

...ieces (scintillation) and deliver it to the eye (brilliance). In its rough crystalline form, a diamond will do none of these things, it requires proper fashioning This difference in color is based on the atomic structure of the stone. Although the different stones formally have the same chemical

...n= New York |language= English |isbn= 0-8247-9468-0}}</ref> are a group of crystalline polar [[polymers]] that are also [[ferroelectric]], meaning that they maint [[image:Polyvinylidene_fluoride.png|right|thumb|Figure 1: Structure of Poly(vinylidene fluoride)]]

...ample of lyotropic LCPs is the commercial aramid known as Kevlar. Chemical structure of this aramid consists of linearly substituted aromatic rings linked by am ..., liquid-crystal polymers are capable of forming regions of highly ordered structure while in the liquid phase. However, the degree of order is somewhat less th

...s controlled by several parameters such as the number of nucleation sites, structure of the polymer molecules, cooling rate, etc. Depending on those parameters, ...ertain ''orderly configuration'': they align themselves in plates called ''crystalline lamellae''.<ref name=sp/>

[[Image:polyanhydride structure.jpg|thumb|500px|right|The structure of a polyanhydride molecule with ''n'' repeating units.]] ...ched chains. This class of [[polymers]] is characterized by a crystalline structure, melting temperature range of 50–90&nbsp;°C, and solubility in chlorinat

[[File:PADC.svg|thumb|Structure]] ...er to form [[cross-link]]s; thus, it is a [[thermoset]] resin. The monomer structure is

...ity#Isotactic_polymers|isotactic]], and [[Crystallization of polymers|semi-crystalline]] polymer. PB-1 combines typical characteristics of conventional [[polyolef ...f the supported catalysts are high productivity and a high fraction of the crystalline isotactic polymer they produce at 70–80 °C under standard polymerization

...e loss of physical properties as the polymer is still held together by the crystalline regions. Water penetrates the device leading to metabolization of the fragm An example of the structure of some of the types of polymer degradation can be viewed in Figure one in

Meyers, M.A., et al., "Biological Materials: Structure & Mechanical Properties", Progress in Materials Science, Vol. 53, p. 1 (200 ...epetitive units called [[monomer]]s. Biopolymers often have a well defined structure, though this is not a defining characteristic (example:ligno-cellulose):

...[[conjugated system|conjugated]] [[diene]] [[hydrocarbon]]; the [[chemical structure]] is shown as a [[reactant]] in the diagram below. A hydrocarbon diene [[mo ...in the polymer chain, preventing polymer chains from lining up and forming crystalline regions and resulting in larger regions of amorphous polymer. It has been f

0.946 g/cm³, crystalline Propylene was first polymerized to a crystalline isotactic polymer by [[Giulio Natta]] and his coworkers in March of 1954<re

...the transmission electron microscope or [[TEM]] was needed to examine the structure. The butadiene matrix was stained with [[osmium tetroxide]] to provide cont ...ion of the SBS block polymers, especially where one of the block is highly crystalline. One exception to the rule of incompatibility is the material [[Noryl]], wh

==Correlation of chemical structure and electrical conductivity== ...1950s, when Bernanose and coworkers first produced electroluminescence in crystalline thin films of acridine orange and quinacrine. In 1960, researchers at Dow C

...</ref> [[amorphous]]: 1.370 g/cm³,<ref name="van der Vegt" /> [[crystalline]]: 1.455 g/cm³<ref name="van der Vegt" /> ...que and white (particle size up to a few microns) depending on its crystal structure and particle size. Its monomer (bis-β-hydroxyterephthalate) can be synthes

...characterization of polymers, a correct understanding of polymer molecular structure did not emerge until the 1920s. Before then, scientists believed that polym ...n|modified further]] following translation in order to provide appropriate structure and functioning.

==Structure and properties== ...f name="Aulin2009"/> The degree of crystallinity and the cellulose crystal structure of nanocellulose were also studied at the same time. The results clearly sh

...line nor amorphous and are classified as semicrystalline. Examples of semi-crystalline polymers are linear [[polyethylene]] (PE), [[polytetrafluoroethylene]] (PTF [[Image:Isotactic polypropylene.svg|thumb|The structure of isotactic polypropylene.]]

..., such as excluded volume interactions or electrostatic forces, govern the structure and behavior of colloidal suspensions. For example, the same techniques use ...sub>2</sub>).<ref>{{cite journal|author = Sanders, J.V.|year =1964|title = Structure of Opal|journal = Nature |volume=204|page =1151|doi=10.1038/204990a0|last2

...f most metals is due to the tightly packed crystal lattice of the metallic structure. The strength of metallic bonds for different metals reaches a maximum arou ...culated from the [[free electron model]], which does not take the detailed structure of the ion lattice into account.

...ntal Programmatic Environmental Impact Statement For Army Growth And Force Structure Realignment ...of the depleted uranium produced is stored as [[uranium hexafluoride]], a crystalline solid, (D)UF₆, in steel cylinders in open air storage yards clos

...m of [[steel]] crystalline structure, but it can also refer to any crystal structure that is formed by [[displacive transformation]]. It includes a class of har ...[microscope]], and found that the hardest steels had a regular crystalline structure. He was the first to explain the cause of the widely differing mechanical p

...[metal]]s. Understood as the sharing of "free" electrons among a [[crystal structure|lattice]] of positively charged ions ([[cations]]), metallic bonding is som ...rmal analysis]] (initially DTA) made it possible to study the structure of crystalline solids, including metals and their alloys, and the construction of [[phase

...usters. These clusters form a three-dimensional highly [[porosity|porous]] structure of almost [[fractal]] chains, with pores just under 100&nbsp;nm. The averag ...he shorter [[wavelength]]s of [[visible light]] by the nanosized dendritic structure. This causes it to appear smoky blue against dark backgrounds and yellowish

==Structure and properties== ...= Il Nuovo Cimento|year = 1960|volume = 15|pages = 68–82|title = Crystal structure of isotactic polystyrene}}</ref></small></center>

Sugar, because of its simpler chemical structure, was once assumed (without scientific research) to raise blood glucose leve ...arbohydrates such as [[polysaccharide]]s. [[Corn syrup]], [[dextrose]], [[crystalline fructose]], and [[maltose]], for example, are used in manufacturing and pre

...tive use is in the former category: a fine-grained [[clay]] with a laminar structure suspended in a [[thermoplastic]] [[olefin]] (a class which includes many co

The yarn or doubled yarn twist is set. Of course, the morphological structure of the fibers ...elongation]]Synthetic fibers can be divided up into two fiber domains, the crystalline (organized) domain

| ImageFile1 = Kevlar chemical structure.png | ImageName1 = Kevlar molecular structure

...[[crystal]]s in which atoms, molecules or ions form a [[crystal structure|crystalline lattice]]. Compounds based primarily on carbon and hydrogen atoms are call ...refer to [[chemical compound]]s using [[chemical formula]]e or [[molecular structure]] of the compound. There has been a phenomenal growth in the number of chem

...hain components which they contain. Typical microcrystalline wax [[crystal structure]] is small and thin, making them more flexible than paraffin wax. It is com Microcrystalline waxes are excellent materials to use when modifying the crystalline properties of paraffin wax. The microcrystalline wax has a significant effe

== Chemical structure == Hydrogenated jojoba oil is a hard, crystalline wax ester. The melting point is 68-70 °C and the iodine value is < 2.0, ma

...result in a modified paraffin with a higher viscosity, smaller crystalline structure, and modified functional properties. Pure paraffin wax is rarely used for c

...ining ester, carboxylic acid, or alcohol [[functional group|groups]]. The structure and molecular weight of the hydrocarbon chain and the relative concentratio * [[Microcrystalline wax]] - with very fine crystalline structure

...ce corrosion and blocks corrosion from spreading into the metal's internal structure. ...of the 1964-4 World's Fair in New York City, is the world's largest global structure.

Stainless steels may be classified by their [[crystalline structure]] into three main types: ''[[Austenite|Austenitic]]'', ''[[Ferrite (iron)|F

...re is no change in crystalline structure, but there is a change in "domain structure", where each domain contains iron atoms with a particular electronic spin. ...com/?id=xv420pEC2qMC&pg=PA183| page=183| title=Concise encyclopedia of the structure of materials| first=John Wilson | last = Martin| publisher=Elsevier| year=

| Appearance = Colourless crystalline solid | Section3 = {{Chembox Structure

...stands for ''para''- . All three are [[aryl]] [[amine]]s whose [[chemical structure]]s are similar to [[aniline]] except that a [[methyl group]] is substituted ...oluidine [[molecule]]s are more symmetrical and fit into a [[crystal]]line structure more easily. ''p''-Toluidine can be obtained from [[Redox|reduction]] of '

| Appearance = Green crystalline solid | Section3 = {{Chembox Structure

Safranin typically has the chemical structure shown at right (sometimes described as '''dimethyl safranin'''). There is ...[base (chemistry)|bases]] such as diphenylmetaphenylenediamine. They are [[crystalline]] solids showing a characteristic green metallic [[Lustre (mineralogy)|lust

| ImageName = Chemical structure of luminol ...with an appropriate [[oxidizing agent]]. It is a white to slightly yellow crystalline solid that is soluble in most polar organic solvents, but insoluble in wate

'''Amidol''' is a colorless [[crystal]]line compound with the molecular structure C₆H₃(NH₂)₂OH. It is a [[hydrog

|File:Chlorid manganatý.JPG|alt2=Some clumps of a pale pink, translucent, crystalline solid, on a laboratory watch glass|Manganese(II) chloride ...s by transmission electron microscopy and micro-X-ray absorption near-edge structure|year = 2006|last = Chalmin|first = E.|coauthors = Vignaud, C.; Salomon, H.;

...most common allotrope of arsenic is ''grey arsenic''. It adopts a layered structure, a ruffled analogue of [[graphite]], consisting of many interlocked six-mem [[Image:White phosphrous molecule.jpg|left|thumb|100px| Structure of yellow arsenic As₄ and white [[phosphorus]] P₄]]

| Appearance = White crystalline powder | Section3 = {{Chembox Structure

...ucture of [[2.2.2-Cryptand]] encapsulating a potassium cation (purple). At crystalline state, obtained with an X-ray diffraction.<ref>{{cite journal | author = Al ==Structure==

| ImageName = Structure of DTPA | Appearance = White crystalline solid

...ructure of a [2.2.2]cryptand encapsulating a potassium cation (purple). At crystalline state, obtained with an X-ray diffraction.<ref>{{cite journal | author = Al

==Structure== ...allography]]. Metallacrowns typically contain fused chelate rings in their structure, which imparts them with substantial stability. Metallacrowns have been syn

| Appearance = crystalline white solid At room temperature, citric acid is a white crystalline powder. It can exist either in an [[anhydrous]] (water-free) form or as a

...and [[nitrate]] (NO₃^&minus;) have a trigonal planar structure with π bonding between the central atom and the oxygen atoms. This π bond ...2 = &minus;1, and so the formula is ClO₃^&minus;. The structure of the ion is predicted by [[VSEPR]] theory to be pyramidal, with three bon

| image_source = Structure of human hemoglobin. The protein's <font color = "red">'''α'''</font> and ...ref><ref name="pmid13734651">{{cite journal | author = Perutz MF | title = Structure of haemoglobin | journal = Brookhaven symposia in biology | volume = 13 | i

...rystallographic Nomenclature Subcommittee on the Nomenclature of Inorganic Structure Types ...iodic table (crystal structure)|metals]] with the face centred cubic (fcc) structure each atom has twelve nearest neighbours in a [[cuboctahedron|cuboctahedral]

...of this tissue is the [[adipocyte]], or fat cell.<ref name="Lynch" /> The structure of this tissue is composed of septal (i.e. linear strands) and [[Lobe (anat *[[Miliaria crystallina]] (Miliaria crystalline, Sudamina)

...sorcery. However, the creature is usually dominated by the undead command structure, but they can escape from the tyranny of undeath. It also causes the soil b

| Section3 = {{Chembox Structure ...er]]s, [[lactone]]s, [[alcohol]]s and [[butenolide]]s classes, is a yellow crystalline [[solid]]. Although the pulvinone is not a [[natural product]], several nat

| Appearance = White or colorless<br />crystalline solid ...obtained from [[peppermint]] or other [[Mentha|mint]] oils. It is a waxy, crystalline substance, clear or white in color, which is solid at [[room temperature]]

...tal]]line [[Chemical substance|substance]] having the [[chemical structure|structure]] shown at right.

...own 2 times and wet granulated to form the base material. The crystalline structure is one reason certain people can have unique reactions<ref name="advil.com"

|title = Structure, bonding and geochemistry of xenon at high pressures |title=An Introduction to the Electronic Structure of Atoms and Molecules

...l drug, GHB may be found as the sodium or potassium salt, which is a white crystalline powder, or as GHB salt dissolved in water to form a clear solution. The sod ...roactively, based on the proclivity of a said chemical to mimic either the structure or the effects of the banned drug.