{"id":2129,"date":"2024-03-05T09:48:06","date_gmt":"2024-03-05T09:48:06","guid":{"rendered":"https:\/\/cake.appscodestudio.com\/?p=2129"},"modified":"2024-03-05T09:48:06","modified_gmt":"2024-03-05T09:48:06","slug":"alkenes-2","status":"publish","type":"post","link":"https:\/\/cake.appscodestudio.com\/index.php\/2024\/03\/05\/alkenes-2\/","title":{"rendered":"Alkenes"},"content":{"rendered":"\n<p>Organic compounds are termed alkenes if they contain a carbon-carbon double bond. The shared electron pair of one of the bonds is a \u03c3 bond. The second pair of electrons occupies space on both sides of the \u03c3 bond; this shared pair\u00a0constitutes\u00a0a pi (\u03c0) bond. A \u03c0 bond forms a region of increased electron density because the electron pair is more distant from the positively charged carbon nuclei than is the electron pair of the \u03c3 bond . Even though a carbon-carbon double bond is very strong, a \u03c0 bond will draw to itself atoms or atomic groupings that are electron-deficient, thereby initiating a process of bond-breaking that can lead to rupture of the \u03c0 bond and formation of new \u03c3 bonds. A simple example of an alkene reaction, which illustrates the way in which the electronic properties of a functional group determine its reactivity, is the addition of molecular hydrogen to form alkanes, which contain only \u03c3 bonds.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cdn.britannica.com\/80\/16480-004-4FB7CBA0\/addition-alkene-reaction-Chemical-Compound-way-properties.jpg\" alt=\"Chemical Compound. A simple example of an alkene reaction, which illustrates the way in which the electronic properties of a functional group determine ist reactivity, is the addition of molecular hydrogen to from alkanes.\"\/><\/figure>\n\n\n\n<p>Such reactions, in which the \u03c0 bond of an alkene reacts to form two new \u03c3 bonds, are energetically favourable because the new bonds formed (two carbon-hydrogen \u03c3 bonds) are stronger than the bonds broken (one carbon-carbon \u03c0 bond and one hydrogen-hydrogen \u03c3 bond). Because the addition of atoms to the \u03c0 bond of alkenes to form new \u03c3 bonds is a general and\u00a0characteristic\u00a0reaction of alkenes, alkenes are said to be unsaturated. Alkanes, which cannot be transformed by addition reactions into molecules with a greater number of \u03c3 bonds, are said to be saturated.<\/p>\n\n\n\n<p>The alkene functional group is an important one in chemistry and is widespread in nature. Some common examples (shown here) include ethylene (used to make polyethylene), 2-methyl-1,3-butadieneisoprene (used to make rubber), and\u00a0vitamin A\u00a0(essential for vision).<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cdn.britannica.com\/79\/16479-004-1C6F5755\/Chemical-Compound-examples-group-vitamin-A-ethylene.jpg\" alt=\"Chemical Compound. Common structural examples of the alkene functional group: ethylene, isoprene and vitamin A.\"\/><\/figure>\n\n\n\n<p>For ethene, both the carbon atoms of an alkene and the four atoms connected to the double bond lie in a single plane.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Organic compounds are termed alkenes if they contain a carbon-carbon double bond. The shared electron pair of one of the bonds is a \u03c3 bond. The second pair of electrons occupies space on both sides of the \u03c3 bond; this shared pair\u00a0constitutes\u00a0a pi (\u03c0) bond. A \u03c0 bond forms a region of increased electron density [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-2129","post","type-post","status-publish","format-standard","hentry","category-organic-compounds"],"Cooking_time":"","jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/2129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/comments?post=2129"}],"version-history":[{"count":1,"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/2129\/revisions"}],"predecessor-version":[{"id":2130,"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/posts\/2129\/revisions\/2130"}],"wp:attachment":[{"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/media?parent=2129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/categories?post=2129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cake.appscodestudio.com\/index.php\/wp-json\/wp\/v2\/tags?post=2129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}