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{{Chembox |
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{{expert|date=February 2011}} |
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| verifiedrevid = 399896161 |
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| verifiedrevid = 415730843 |
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| ImageFileL1 = Dichlorodifluoroethylene.png |
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| ImageFile = 1,1-Dichloro-2,2-difluoroethylene.svg |
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| ImageSizeL1 = 110px |
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| ImageCaption= 1,1-Dichloro-2,2-difluoroethylene |
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| ImageNameL1 = Skeletal formula of dichlorodifluoroethylene |
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| ImageSize = 100px |
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| ImageFileR1 = Dichlorodifluoroethylene-3D-balls.png |
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| ImageFileL1 = Cis-1,2-dichloro-1,2-difluoroethylene.svg |
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| ImageSizeR1 = 110px |
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| ImageCaptionL1= ''cis''-1,2-Dichloro-1,2-difluoroethylene |
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| ImageNameR1 = Ball-and-stick model of dichlorodifluoroethylene |
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| ImageSizeL1 = 100px |
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|IUPACName=1,1-dichloro-2,2-difluoroethylene |
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| ImageFileR1 = Trans-1,2-dichloro-1,2-difluoroethylene.svg |
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|OtherNames= |
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| ImageCaptionR1=''trans''-1,2-Dichloro-1,2-difluoroethylene |
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| ImageSizeR1 = 100px |
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| IUPACName = 1,1-Dichloro-2,2-difluoroethene<br />(''Z'')-1,2-Dichloro-1,2-difluoroethene<br />(''E'')-1,2-Dichloro-1,2-difluoroethene |
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| OtherNames = |
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|Section1={{Chembox Identifiers |
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|Section1={{Chembox Identifiers |
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| InChI = 1/C2Cl2F2/c3-1(4)2(5)6 |
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| CASNo_Ref = {{cascite|correct|??}} |
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| InChIKey = QDGONURINHVBEW-UHFFFAOYAW |
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| CASNo = 79-35-6 |
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| SMILES1 = Cl/C(Cl)=C(/F)F |
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| PubChem = 6592 |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| ChemSpiderID = 21106435 |
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| SMILES = ClC(Cl)=C(F)F |
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| StdInChI_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChI_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChI = 1S/C2Cl2F2/c3-1(4)2(5)6 |
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| StdInChI = 1S/C2Cl2F2/c3-1(4)2(5)6 |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} |
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| StdInChIKey = QDGONURINHVBEW-UHFFFAOYSA-N |
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| StdInChIKey = QDGONURINHVBEW-UHFFFAOYSA-N |
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| UNII_Ref = {{fdacite|correct|FDA}} |
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| CASNo=79-35-6 |
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| UNII = WC503FP86Y |
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| PubChem=6592 |
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| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} |
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| CASNo1_Ref = {{cascite|changed|??}} |
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| ChemSpiderID=21106435 |
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| CASNo1 = 311-81-9 |
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| SMILES=C(=C(Cl)Cl)(F)F |
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| CASNo1_Comment =(''cis'') |
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| PubChem1 = 2736814 |
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| ChemSpiderID1_Ref = {{chemspidercite|changed|chemspider}} |
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| ChemSpiderID1 = 2018468 |
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| SMILES1 = Cl/C(F)=C(\Cl)F |
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| InChI3 = 1S/C2Cl2F2/c3-1(5)2(4)6/b2-1- |
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| InChIKey3 = UPVJEODAZWTJKZ-UPHRSURJSA-N |
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| CASNo2_Ref = {{cascite|changed|??}} |
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| CASNo2 = 381-71-5 |
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| CASNo2_Comment =(''trans'') |
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| PubChem2 = 3032334 |
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| ChemSpiderID2_Ref = {{chemspidercite|changed|chemspider}} |
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| ChemSpiderID2 = 2297331 |
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| SMILES2 = Cl/C(F)=C(/Cl)F |
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| InChI4 = 1S/C2Cl2F2/c3-1(5)2(4)6/b2-1+ |
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| InChIKey4 = UPVJEODAZWTJKZ-OWOJBTEDSA-N |
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|Section2={{Chembox Properties |
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|Section2={{Chembox Properties |
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| C=2 | Cl=2 | F=2 |
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| Formula=C<sub>2</sub>Cl<sub>2</sub>F<sub>2</sub> |
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| Appearance = |
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| MolarMass=132.924 g/mol |
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| Density = |
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| MagSus = -60.0·10<sup>−6</sup> cm<sup>3</sup>/mol |
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|Section3={{Chembox Hazards |
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|Section3={{Chembox Hazards |
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A '''dichlorodifluoroethylene''' (systematically named '''dichlorodifluoroethene''') is one of three ]s with the ] {{Chem|C|2|Cl|2|F|2}}. Dichlorodifluoroethylenes are colourless gases, and are some of the simplest chlorodifluoroalkenes. |
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'''Dichlorodifluoroethylene''' is a ] ]. It is regarded as a ] and causes irritation when it comes into contact with the skin and mucous membranes. As a ], it is known as R-1112a. |
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The ]s are used as intermediates or precursors in the production of other industrial chemicals.<ref name=sup11>{{cite web |url=http://www.buyersguidechem.com/chemical_supplier/1,1-Dichlorodifluoroethylene.php |title=1,1-Dichlorodifluoroethylene | 79-35-6 suppliers - BuyersGuideChem |website=www.buyersguidechem.com |access-date=26 December 2013}}</ref><ref name=pat12>{{cite web |url=http://www.google.nl/patents/US5118888 |title=Process for the preparation of 1,2-difluoro-ethylene and 1-chloro-1,2-difluoro-ethylene |website=www.google.nl |access-date=26 December 2013}}</ref> |
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==External links== |
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== 1,1-Dichloro-2,2-difluoroethylene == |
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1,1-Dichloro-2,2-difluoroethylene is a low-boiling liquid that is used a ].<ref>{{Cite web |url=http://refrigtech.com/Knowledge_Center/Toxic_Info/zsafety.html |title=Refrigeration Technologies: Knowledge Center: Toxic Info: Refrigerant Safety Profile |access-date=2013-12-05 |archive-url=https://web.archive.org/web/20131224091223/http://refrigtech.com/Knowledge_Center/Toxic_Info/zsafety.html |archive-date=2013-12-24 |url-status=dead }}</ref> It may also be used as a ], but has practical limitations as such, because of its low boiling point (commercial listings, 19 °C; lit. 17 °C).<ref>{{Cite web|url=http://www.orgsyn.org/demo.aspx?prep=cv4p0268|title=Organic Syntheses Procedure}}</ref> |
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{{organohalide-stub}} |
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It is regarded as a ] for being toxic by inhalation (see ]), and a low-boiling liquid, and it causes irritation when it comes into contact with the skin and mucous membranes. Its ] number is R-1112a, and its CAS number is 79-35-6. Concentrated 1,1-dichloro-2,2-difluoroethylene can be ignited with ease in the laboratory. |
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== ''cis''- And ''trans''-1,2-dichloro-1,2-difluoroethylene == |
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The diastereomers were co-isolated first in 1965, by using a combination of fractional melting and fractional distillation.<ref name=Craig1965>{{Cite journal|last=Craig|first=Norman C.|author2=Evans, David A.|title=Infrared and Raman spectra of ''cis''- and ''trans''-1,2-dichloro-1,2-difluoroethylene|journal=]|date=5 October 1965|volume=87|issue=19|pages=4223–4230|doi=10.1021/ja00947a001|publisher=ACS Publications}}</ref> The cis isomer's ASHRAE number is R-1112c, and its CAS number is 311-81-9. Its melting point is {{Convert|−119.6|C}}.<ref name=Craig1965 /> The trans isomer's ASHRAE number is R-1112t, and its CAS number is 381-71-5. Its melting point is {{Convert|−93.3|C}}.<ref name=Craig1965 /> The diastereomers are commercially only available as a mixtures of varying proportions. |
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== References == |
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{{Reflist|2}} |
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== External links == |
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