?Name anthracene&Units SI NIST Chemistry WebBook Anthracene ref Name Anthracene ImageFile Anthracene 2D Skeletal.png ImageName Anthracene ImageFile1 Anthracene 3D balls.png ImageName1 Anthracene 3D IUPACName Anthracene Section1 Chembox Identifiers SMILES c3ccc2cc1ccccc1cc2c3 ChemSpiderID Ref chemspidercite ... EUClass Dangerous for the Environment Anthracene is a solid polycyclic aromatic hydrocarbon consisting of three fused benzene rings. It is a component of coal tar . Anthracene is used in the Economic production production of the red dye alizarin and other dyes. Anthracene is colorless but exhibits ... band of anthracene was observed along a line of sight to a star in the open cluster IC 348, and this may ..., D. L. title A search for interstellar anthracene toward the Perseus anomalous microwave emission region month May year 2010 bibcode 2010arXiv1005.4388I ref Production Commercial anthracene is obtained ... for the preparation of anthracene is by cyclodehydration of o methyl or o methylene substituted diarylketones in the so called Elbs reaction . Purity anthracene can be acquired for approximately 1.10 per gram as of February 2011. Reactions Anthracene photochemistry photodimerize s by the action of ultra violet UV light Image Anthracene Photodimerisation.svg Anthracene dimer The Dimer chemistry dimer ... reverts to anthracene thermally or with ultra violet UV irradiation below 300 nm. The reversible .... Substituted anthracene derivatives behave similarly. The reaction is affected by the presence of oxygen . Reduction of anthracene generally yields 9,10 dihydroanthracene destroying the aromaticity ... Uses Anthracene is mainly converted to anthroquinone, a precursor to dyes. ref Gerd Collin, Hartmut H ke and J rg Talbiersky Anthracene in Ullmann s Encyclopedia of Industrial Chemistry, Wiley VCH, Weinheim, 2006. DOI 10.1002 14356007.a02 343.pub2 ref Anthracene is an organic semiconductor ... s. Plastics such as polyvinyltoluene can be doped with anthracene to produce a plastic scintillator ... more details
DISPLAYTITLE Benz a anthracene correct title reason bracket Benz a anthracene Chembox verifiedrevid 396296498 Name Benzo a anthracene ImageFile Benzanthracene.png ImageSize 200px ImageFile1 Benzanthracene 3D balls.png IUPACName benz a anthracene OtherNames Benzanthracene Benzanthrene 1,2 Benzanthracene Benzo b phenanthrene Tetraphene Section1 Chembox Identifiers PubChem 5954 InChI 1 C18H12 c1 2 7 15 12 18 16 11 14 15 6 1 10 9 13 5 3 4 8 17 13 18 h1 12H InChIKey DXBHBZVCASKNBY UHFFFAOYAM StdInChI 1S C18H12 c1 2 7 15 12 18 16 11 14 15 6 1 10 9 13 5 3 4 8 17 13 18 h1 12H StdInChIKey DXBHBZVCASKNBY UHFFFAOYSA N CASNo Ref cascite correct CAS CASNo 56 55 3 ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 5739 SMILES c1ccc2c c1 ccc3c2cc4ccccc4c3 MeSHName KEGG C14317 Section2 Chembox Properties Formula C sub 18 sub H sub 12 sub MolarMass 228.2879 Appearance solid Density 1.19 g cm sup 3 sup MeltingPtC 158 BoilingPtC 438 Solubility Section3 Chembox Hazards meltingpoint 54 FlashPt 209.1 C Benz a anthracene is a polycyclic aromatic hydrocarbon with the chemical formula C sub 18 sub H sub 12 sub . See also Tetracene , also known as benzo b anthracene PAHs hydrocarbon stub Category Polycyclic aromatic hydrocarbons fr Benzanthrac ne nl Benzo a anthraceen ... more details
DISPLAYTITLE Dibenz a , h anthracene correct title reason bracket Dibenz a , h anthracene Chembox Name Dibenz a , h anthracene ImageFile Dibenz a h anthracene.png IUPACName OtherNames Section1 Chembox Identifiers InChIKey StdInChIKey ChemSpiderID 5678 InChI InChI 1 C22H14 c1 3 7 19 15 5 1 9 11 17 14 22 18 13 21 17 19 12 10 16 6 2 4 8 20 16 22 h1 14H StdInChI SMILES c1ccc2c c1 ccc3c2cc4ccc5ccccc5c4c3 MeSHName Section2 Chembox Properties Formula C sub 22 sub H sub 14 sub MolarMass 278.3466 Appearance Density 1.232 g cm sup 3 sup MeltingPt 262 C BoilingPt Section3 Chembox Hazards FlashPt Dibenz a , h anthracene is an organic Chemical compound compound with the chemical formula C sub 22 sub H sub 14 sub . PAHs Category Polycyclic aromatic hydrocarbons hydrocarbon stub ... more details
bis phenylethynyl anthracene emits yellow green light, used in 30 minute high intensity Cyalume sticks 2 chloro 9,10 bis phenylethynyl anthracene emits green light, used in 12 hour low intensity Cyalume ... 2002 I01 General 2 358H 2 358H.asp Novel red emitting BPEAs DEFAULTSORT Bis phenylethynyl anthracene ... more details
DISPLAYTITLE C sub 18 sub H sub 12 sub The molecular formula C sub 18 sub H sub 12 sub may refer to Benz a anthracene Benz a anthracene Benzo c phenanthrene Benzo c phenanthrene Chrysene Tetracene Triphenylene MolFormDisambig fr C18H12 ... more details
DISPLAYTITLE C sub 30 sub H sub 18 sub The molecular formula C sub 30 sub H sub 18 sub may refer to 9,10 Bis phenylethynyl anthracene Heptacene MolFormDisambig ... more details
DISPLAYTITLE C sub 30 sub H sub 17 sub Cl The molecular formula C sub 30 sub H sub 17 sub Cl molar mass 412.91 g mol may refer to 1 Chloro 9,10 bis phenylethynyl anthracene , a fluorescent dye 2 Chloro 9,10 bis phenylethynyl anthracene , a fluorescent dye MolFormDisambig ... more details
Multiple issues orphan February 2009 cleanup June 2007 context October 2009 refimprove December 2010 Antitumorigenic herbs , herb s that inhibit the formation or growth of tumor s, included rosemary , garlic , turmeric , basil , etc. According to Singletory et al., extracts of the spice rosemary officinalis L. have been reported to inhibit experimental carcinogenesis . Two rosemary components, carnosol and ursolic acid , appear to be partly responsible for the antitumorigenic activity of rosemary. The present studies were conducted in order to evaluate the activity of rosemary extract, carnosol and ursolic acid in inhibiting the in vivo formation of mammary 7,12 Dimethylbenz a anthracene 7,12 dimethylbenz a anthracene DMBA DNA adducts and the initiation of DMBA induced mammary tumorigenesis in female rats. References Singletary K MacDonald C Wallig M. Inhibition by rosemary and carnosol of 7,12 dimethylbenz a anthracene DMBA induced rat mammary tumorigenesis and in vivo DMBA DNA adduct formation.Cancer Lett, 104 1 43 8 1996 Jun 24 Category Chemotherapeutic agents ... more details
DISPLAYTITLE C sub 14 sub H sub 10 sub The molecular formula C sub 14 sub H sub 10 sub may refer to Anthracene Diphenylacetylene Phenanthrene disambig category molecular formulas Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. fr C14H10 ... more details
Unreferenced date February 2009 Carbolineum is an oily, water insoluble, flammable, dark brown mixture from coal tar components, smelling of tar. It contains among other things anthracene and phenol . Because of its rot resisting and disinfecting effect, Carbolineum was used over many years for the preservation of wooden structures such as railroad ties , telephone poles , Log cabin cabin s, etc . More recently, its use has been limited and or forbidden by the introduction of stricter environmental regulations. See also Creosote Category Coal de Carbolineum nl Carbolineum ... more details
Karl Elbs b. 13 September 1858 in Alt Breisach , Baden , Germany was a German chemist. He is credited with developing the Elbs reaction for the synthesis of anthracene . He is also responsible for the Elbs persulfate oxidation . Elbs died on 24 August, 1933. References E. J. Behrman, Bull. Hist. Chem., 30, 19 22 2005 . Persondata Metadata see Wikipedia Persondata . NAME Elbs, Karl ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 13 September 1858 PLACE OF BIRTH DATE OF DEATH 1933 PLACE OF DEATH DEFAULTSORT Elbs, Karl Category 1858 births Category 1933 deaths Category German chemists Germany chemist stub de Karl Elbs ... more details
Chembox ImageFile TCPO.png ImageSize 200px IUPACName Oxalic acid bis 2,4,6 trichloro phenyl ester OtherNames Bis 2,4,6 trichlorophenyl oxalate, bis 2,4,6 trichlorophenyl ethanedioate Section1 Chembox Identifiers CASNo 1165 91 9 PubChem ChemSpiderID 141097 SMILES O C C OC1 C Cl C C Cl C C1Cl O OC2 C Cl C C Cl C C2Cl InChI InChI 1 C14H4Cl6O4 c15 5 1 7 17 11 8 18 2 5 23 13 21 14 22 24 12 9 19 3 6 16 4 10 12 20 h1 4H Section2 Chembox Properties C 14 H 4 Cl 6 O 4 Appearance white crystalline powder Density 1.698 g cm sup 3 sup MeltingPt 188 192 C BoilingPt 500.9 C Solubility 0.01962 mg L Section3 Chembox Hazards MainHazards FlashPt 190.6 C Autoignition TCPO , or bis 2,4,6 trichlorophenyl oxalate, is the main chemical in glow stick s. Uses TCPO is one of the major ingredients in glow stick glow sticks . When combined with a fluorescent dye like 9,10 Bis phenylethynyl anthracene 9,10 bis phenylethynyl anthracene , a solvent such as diethyl phthalate , and a weak base usually sodium acetate or sodium salicylate , and hydrogen peroxide , the mixture will start a Chemiluminescence reaction to glow an fluorescent green color. ref http sites.google.com site nurdrage chemistry experiments how to make a glow stick with real chemicals How to Make a Glow Stick with Real Chemicals ref Red, yellow and blue colours can be made by replacing the 9,10 bis phenylethynyl anthracene with Rhodamine B, Rubrene and 9,10 diphenylanthracene respectively. In a glowstick a Fluorophore fluorescent dye converts much of the light energy produced into the visible spectrum producing a brighter glow. Preparation TCPO can be prepared from a solution of 2,4,6 trichlorophenol in a solution of dry toluene by reaction with oxalyl chloride in the presence of a base such as triethylamine . This method produces crude TCPO with a by product of triethylamine hydrochloride . References reflist Category Organochlorides Category Oxalates organic compound stub fr Oxalate de di 2,4,6 trichloroph nyle ... more details
Solar chemical refers to a number of possible processes that harness solar energy by absorbing sunlight in a Photoelectrochemical cell chemical reaction in a way similar to photosynthesis in plants but without using living organisms. It is also called artificial photosynthesis . ref Magnuson A et al. Biomimetic and Microbial Approaches to Solar Fuel Generation. Accounts of Chemical Research 2009 42 12 1899 1908 ref No practical process has yet emerged. A promising approach is to use focused sunlight to provide the energy needed to split water into its constituent hydrogen and oxygen in the presence of a metallic catalyst such as zinc . This is normally done is a two step process so that hydrogen and oxygen are not produced in the same chamber leading to potentially explosive consequences. It is also possible to use solar light to drive industrial chemical reactions and applications without a requirement for fossil fuel. Sunlight energy storing chemicals Photodimerization is the light induced formation of Dimer chemistry dimer s. As early as 1909, the dimerization of anthracene into dianthracene was investigated as a means of storing solar energy. The photodimerization of the naphthalene series has also been investigated. ref cite book author Bolton, James year 1977 title Solar Power and Fuels publisher Academic Press, Inc. isbn 0121123502 , p. 235 237 ref Image Anthracene Photodimerisation.svg thumb left 320px Anthracene dimerization clear left Photoisomerization is the light induced formation of isomer s. Various ketones, azepines and norbornadiene s among other compounds have been investigated as potential energy storing isomers. ref cite book author Bolton, James year 1977 title Solar Power and Fuels publisher Academic Press, Inc. isbn 0121123502 , p. 238 240 ref The norbornadiene quadricyclane couple is of most potential interest for solar energy storage processes. The controlled release of the strain energy stored in quadricyclane about 110 k joule per mole J m ... more details
orphan date January 2010 Unreferenced date January 2010 Benzo might also refer to Benzodiazepine In organic chemistry the addition of the prefix benzo to the name of a chemical compound indicates the addition of an even number of carbon atoms to an unsaturated compound unsaturated or already aromatic compound by which a new aromatic ring is formed. Between the prefix benzo and the name of the parent compound then place of the addition of the extra carbon atoms is indicated by letters written between square brackets. ref In the names of pages in the Wikipedia curved brackets are used, as square brackets lead to malfunctioning in links to those pages. ref Quite often the number of added carbon atoms is four, although sometimes two else will do the job as shown in the following table. The first entry also shows different routes to the name of the same molecule. Examples class wikitable width 100 style width 10 Parent compound style width 20 Structural formula of parent compound style width 15 Letters and numbers in the parent compound style width 20 Structural formula of the benzo compound style width 35 Benzo compound valign center align center Anthracene File Anthracen.svg 200px File Benzanthracene.png 200px valign center align center Benzo a anthracene Benzo a anthracene by adding four extra carbon atoms to the parent compound, the leftmost upper ring is formed. valign center align center Phenanthrene File Phenanthrene.svg 200px File Benzanthracene.png 200px valign center align center Benzo b fenanthrene by adding four carbon atoms to the parent compound the right most ring is formed. Clearly this compound is identical to the compound above. As benzoant.. alphabetizes before benzophe.. like numbers place letters first are omitted while indexing compounds, later on they are added again if necessary the proper name for this compound is Benzo a anthracene . valign center align center Pyrene File Pyrene.svg 200px File Pyrene numbered.png 150px File Benzo a pyrene.svg va ... more details
Polyvinyltoluene PVT , polyvinyl toluene is a synthetic polymer . PVT can be doped with anthracene to produce a plastic scintillator . When subjected to ionizing radiation both particle radiation and gamma radiation , the amount of visible radiation emitted is proportional to the absorbed dose. PVT can be damaged by radiation with high stopping power, e.g. ion beam s. Such radiation breaks the C H covalent bond bonds and significantly reduces the luminescence yield. http www.sciencedirect.com science? ob ArticleURL& udi B6TVT 44HY3MP H& user 10& coverDate 01 2F31 2F2002& rdoc 1& fmt & orig search& sort d&view c& acct C000050221& version 1& urlVersion 0& userid 10&md5 615b0838aa3371ad9a8045ac6b09f826 polymer stub Category Vinyl polymers Category Phosphors and scintillators ... more details
ref acenaphthene acenaphthylene anthracene benz a anthracene benz a anthracene benzo a pyrene benzo ... chrysene coronene dibenz a,h anthracene fluoranthene fluorene indeno 1,2,3 cd pyrene phenanthrene ... carcinogens benz a anthracene benz a anthracene , benzo a pyrene benzo a pyrene , benzo b fluoranthene benzo b fluoranthene , benzo k fluoranthene benzo k fluoranthene , chrysene , dibenz a,h anthracene ... are benz a anthracene benz a anthracene and chrysene , benzo b fluoranthene benzo b fluoranthene ... a pyrene benzo a pyrene , benzo ghi perylene benzo ghi perylene , coronene , dibenz a,h anthracene ... systems , are phenanthrene and anthracene , which both contain three fused aromatic rings. Smaller molecules ... class wikitable style background ffffff text align center Chemical compound Chemical compound Anthracene ... 16 are listed. They are naphthalene , acenaphthylene , acenaphthene , fluorene , phenanthrene , anthracene , fluoranthene , pyrene , benzo a anthracene benzo a anthracene , chrysene , benzo b fluoranthene ... , dibenz ah anthracene , benzo ghi perylene benzo ghi perylene , and indeno 1,2,3 cd pyrene . This list ... File Anthracene Clar rule.svg 180px Anthracene File Chrysene Clar rule.svg 200px Chrysene File Clar rule.svg 200px Clar rule Phenanthrene 1 Anthracene 2 Chrysene 3 Clar rule For example, in phenanthrene ... its central ring is less aromatic and therefore more reactive. In contrast, in anthracene 2 the number ... around 290 nm, while anthracene has highest wavelength bands around 380 nm. Three ... signatures of anthracene and pyrene no other such complex molecules had ever before been found ... more details
chembox ImageFile Phenyl oxalate ester.png ImageSize 220 ImageName Skeletal formula ImageFile1 Diphenyl oxalate 3D balls.png ImageSize1 220 ImageName1 Ball and stick model IUPACName Diphenyl oxalate OtherNames Diphenylethandioate, oxalic acid diphenyl ester, Cyalume, DPO Section1 Chembox Identifiers CASNo 3155 16 6 PubChem 18475 SMILES O C Oc1ccccc1 C O Oc2ccccc2 Section2 Chembox Properties Formula C sub 14 sub H sub 10 sub O sub 4 sub MolarMass 242.227 g mol Appearance Solid Density MeltingPt 136 C BoilingPt Solubility Section3 Chembox Hazards MainHazards FlashPt Autoignition Diphenyl oxalate trademark name Cyalume is a solid ester whose oxidation products are responsible for the chemiluminescence in a glowstick . It can be synthesized by fully esterifying phenol with oxalic acid . The reaction with hydrogen peroxide that diphenyl oxalate undergoes to produce a photon of light is shown below Image Cyalume reactions.svg 500px The reaction rate is pH dependent, and slightly alkaline conditions achieved by adding a weak base, e.g. sodium salicylate , will produce brighter light. The 2,4,6 trichlorophenol ester of oxalic acid is a solid and thus easier to handle. Furthermore, since trichlorophenolate is the better leaving group, the reaction will proceed faster, again producing brighter light, as compared to the phenol ester. The following colors can be produced by using different dyes class wikitable Color Compound Blue 9,10 Diphenylanthracene Green 9,10 Bis phenylethynyl anthracene Yellow green Tetracene Yellow 1 Chloro 9,10 bis phenylethynyl anthracene Orange 5,12 Bis phenylethynyl naphthacene , Rubrene , Rhodamine 6G Red Rhodamine B References reflist Category Oxalates ja ... more details
Encyclopedia
top
