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  2. 1,2-Dichloroethylene - Wikipedia

    en.wikipedia.org/wiki/1,2-dichloroethylene

    1,2-Dichloroethylene or 1,2-DCE is the name for a pair of organochlorine compounds with the molecular formula C 2 H 2 Cl 2. The two compounds are isomers, each being colorless liquids with a sweet odor. It can exist as either of two geometric isomers, cis-1,2-dichloroethene or trans-1,2-dichloroethene, but is often used as a mixture of the two ...

  3. Cis–trans isomerism - Wikipedia

    en.wikipedia.org/wiki/Cis–trans_isomerism

    Very often, cis–trans stereoisomers contain double bonds or ring structures. In both cases the rotation of bonds is restricted or prevented. [4] When the substituent groups are oriented in the same direction, the diastereomer is referred to as cis, whereas when the substituents are oriented in opposing directions, the diastereomer is referred to as trans.

  4. 1,2-Dichloroethane (data page) - Wikipedia

    en.wikipedia.org/wiki/1,2-Dichloroethane_(data_page)

    Structure and properties Index of refraction, [1] n D: 1.4448 ... of 1,2-Dichloroethylene/ Toluene [6] P = 760 mm Hg BP Temp. °C % by mole dichloroethane liquid vapor

  5. Octahedral molecular geometry - Wikipedia

    en.wikipedia.org/wiki/Octahedral_molecular_geometry

    For ML a 4 L b 2, two isomers exist.These isomers of ML a 4 L b 2 are cis, if the L b ligands are mutually adjacent, and trans, if the L b groups are situated 180° to each other. It was the analysis of such complexes that led Alfred Werner to the 1913 Nobel Prize–winning postulation of octahedral complexes.

  6. Dichloroethene - Wikipedia

    en.wikipedia.org/wiki/Dichloroethene

    Dichloroethene or dichloroethylene, often abbreviated as DCE, can refer to any one of several isomeric forms of the organochloride with the molecular formula C 2 H 2 Cl 2: There are three isomers: 1,1-Dichloroethylene

  7. 1,2-Dichloroethane - Wikipedia

    en.wikipedia.org/wiki/1,2-Dichloroethane

    The chemical compound 1,2-dichloroethane, commonly known as ethylene dichloride (EDC), is a chlorinated hydrocarbon.It is a colourless liquid with a chloroform-like odour. ...

  8. Descriptor (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Descriptor_(Chemistry)

    The descriptors cis (Latin, on this side of) [2] and trans (Latin, over, beyond) [3] are used in various contexts for the description of chemical configurations: [4] [5] In organic structural chemistry , the configuration of a double bond can be described with cis and trans , in case it has a simple substitution pattern with only two residues.

  9. Asymmetric induction - Wikipedia

    en.wikipedia.org/wiki/Asymmetric_induction

    The Cram's rule of asymmetric induction named after Donald J. Cram states In certain non-catalytic reactions that diastereomer will predominate, which could be formed by the approach of the entering group from the least hindered side when the rotational conformation of the C-C bond is such that the double bond is flanked by the two least bulky groups attached to the adjacent asymmetric center. [3]