Alkenes are unsaturated hydrocarbons containing double bond (C=C). Alkenes are unsaturated so atoms can add to them via C=C double bond. The general formula of the alkenes' series is C_nH_2n. The pi-bond is the reason for the higher reactivity of alkenes with respect to alkanes. The basic reactions for alkenes are addition, oxidation and polymerization. The two covalent bonds in the double bond are not equal. The sigma-bond is stronger than the pi-bond. Alkenes are raw materials for many chemical syntheses.

• Nomenclature and structure
• Isomerism
• Chemical properties
• Virtual experiments
• Problems and tests

Nomenclature and structure

http://www.ausetute.com.au/namsenes.html Naming simple alkenes.

http://dl.clackamas.cc.or.us/ch106-02/nomencla.htm Nomenclature of alkenes.

http://dl.clackamas.cc.or.us/ch106-02/structur.htm The important structural feature of alkenes.

http://www.safetyline.wa.gov.au/institute/level2/course15/lecture92/l92_04.asp Rules for naming alkenes.

http://people.ouc.bc.ca/woodcock/nomenclature/nom-610.htm Alkene structures and IUPAC names.

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Isomerism

http://www.ausetute.com.au/namisene.html Structural isomers of alkenes.

http://www.angelfire.com/bc2/OrgChem/alkenes.html Naming alkenes and geometric isomers.

http://www.chemguide.co.uk/basicorg/isomermenu.html#top Iisomerism menu: Structural, geometrical, optical isomerism.

http://dl.clackamas.cc.or.us/ch106-02/isomers.htm Structural and geometric isomers of alkenes.

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Chemical properties

http://www.ausetute.com.au/hydraten.html Hydratation of alkenes.

http://www.ausetute.com.au/hydrhala.html Hydrohalogenation of alkenes.

http://www.ausetute.com.au/ethene.html Properties, production and uses of ethene.

http://www.ausetute.com.au/polythen.html Properties, production and uses of of polyethylene.

http://www.ausetute.com.au/polymers.html Polimers and polymerization.

http://dl.clackamas.cc.or.us/ch106-02/reaction.htm Addition reactions, synthesis of alkylhalides, other addition reactions and lab test.

http://www.chem.fsu.edu/schwartz/CHM2210/Reactions/alkenes/rxns.html Reactions of alkenes.

http://stezlab1.unl.edu/Chem251/alkenes-1/alkenes_prep-react.htm Alkenes-Preparation and reactions.

http://www.chemhelper.com/elecadd.html Electrophilic addition to alkenes.

http://www.ecsel.psu.edu/~snathan/jb/JB_6Alkene/sld001.htm Alkenes: General representation (sample slides). [Back to top]

Virtual experiments

The cyclohexene gives color product when reacting with Br 2 , while the cyclohexane and benzene do not react with it. [Back to top]

Problems and tests

http://www.mp-docker.demon.co.uk/chains_and_rings/topics_1-3/index.html The assignement consists of five quizzes: alkanes, alkenes, arenes and halogenocompounds.

http://www.organicchemistryonline.com/OCOL/CH8.HTM Alkenes and alkynes: A brief Review and problem sets.

http://www.towson.edu/~sweeting/orgrxs/alkene/alkequiz.htm Alkene reactions and synthesis

http://www.creative-chemistry.org.uk/funstuff/index.htm Creative chemistry fun stuff index - games, tests and quizzes.

http://www.chemhelper.com/alkenestest.html Alkenes test.

http://www.learnchem.net/quiz/colympiad/ Contains old chemistry olympiad tests. [Back to top]