{"id":253158,"date":"2025-07-12T00:08:09","date_gmt":"2025-07-12T00:08:09","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=253158"},"modified":"2025-07-12T00:08:13","modified_gmt":"2025-07-12T00:08:13","slug":"draw-the-most-stable-conformation-of-2-methylhexane-as-a-newman-projection-down-the-c2-c3-bond","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/12\/draw-the-most-stable-conformation-of-2-methylhexane-as-a-newman-projection-down-the-c2-c3-bond\/","title":{"rendered":"Draw the most stable conformation of 2-methylhexane as a Newman projection down the C2-C3 bond."},"content":{"rendered":"\n<p>Draw the most stable conformation of 2-methylhexane as a Newman projection down the C2-C3 bond.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>To draw the most stable conformation of 2-methylhexane as a Newman projection down the C2-C3 bond, we first need to understand the structure and the possible conformations of the molecule.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: Drawing the Molecular Structure<\/h3>\n\n\n\n<p>2-methylhexane is a chain of six carbon atoms, with a methyl group (-CH3) attached to the second carbon (C2). The carbon-carbon backbone can be numbered from left to right as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C1: The first carbon in the chain<\/li>\n\n\n\n<li>C2: The second carbon in the chain (the point of substitution)<\/li>\n\n\n\n<li>C3: The third carbon in the chain (the other carbon involved in the bond we&#8217;re focusing on)<\/li>\n\n\n\n<li>C4: The fourth carbon in the chain<\/li>\n\n\n\n<li>C5: The fifth carbon in the chain<\/li>\n\n\n\n<li>C6: The sixth carbon in the chain<\/li>\n<\/ul>\n\n\n\n<p>The molecule can be visualized as:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>    CH3-CH2-CH(CH3)-CH2-CH2-CH3<br><\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Understanding the Newman Projection<\/h3>\n\n\n\n<p>The Newman projection represents the molecule as viewed down a specific bond\u2014in this case, the C2-C3 bond. This bond is a central point of focus, with the atoms on either side of the bond being depicted in a circular format.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The front carbon (C2) is represented as a dot.<\/li>\n\n\n\n<li>The back carbon (C3) is represented as a circle.<\/li>\n<\/ul>\n\n\n\n<p>We need to consider the different groups attached to these carbons:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C2<\/strong> has a hydrogen (H), a methyl group (-CH3), and an ethyl group (-CH2CH3) attached to it.<\/li>\n\n\n\n<li><strong>C3<\/strong> has two hydrogens (H) and an ethyl group (-CH2CH3) attached to it.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Identifying the Most Stable Conformation<\/h3>\n\n\n\n<p>In a Newman projection, the most stable conformation occurs when the substituents on the front and back carbons are as far apart as possible (minimizing steric hindrance). This is typically a staggered conformation, where the groups are positioned in a way that minimizes repulsion.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>staggered<\/strong> conformation minimizes the 1,3-diaxial interactions and steric hindrance between the substituents.<\/li>\n\n\n\n<li>The <strong>eclipsed<\/strong> conformation has all the substituents aligned, which leads to higher energy due to steric strain.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 4: Drawing the Staggered Conformation<\/h3>\n\n\n\n<p>In the <strong>staggered conformation<\/strong> of 2-methylhexane down the C2-C3 bond:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>C2<\/strong> has three substituents:\n<ul class=\"wp-block-list\">\n<li>A hydrogen (on a vertical line).<\/li>\n\n\n\n<li>A methyl group (-CH3) (on a line at a 120-degree angle).<\/li>\n\n\n\n<li>An ethyl group (-CH2CH3) (on a line at a 240-degree angle).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>C3<\/strong> has two substituents:\n<ul class=\"wp-block-list\">\n<li>Two hydrogens (one on each of the horizontal lines).<\/li>\n\n\n\n<li>An ethyl group (-CH2CH3) (on a line at a 120-degree angle).<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>In the most stable conformation (the staggered conformation), the substituents are arranged so that the ethyl groups (-CH2CH3) on C2 and C3 are as far apart as possible, avoiding steric strain. The methyl group on C2 is placed in a position where it does not clash with the substituents on C3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Final Newman Projection<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">cssCopyEdit<code>          H         H\n           \\       \/\n            C2----C3\n           \/       \\\n      CH3-CH2       CH2-CH3\n<\/code><\/pre>\n\n\n\n<p>This is the most stable conformation of 2-methylhexane down the C2-C3 bond, where the groups are staggered and there is minimal steric repulsion.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner9-87.jpeg\" alt=\"\" class=\"wp-image-253159\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Draw the most stable conformation of 2-methylhexane as a Newman projection down the C2-C3 bond. The Correct Answer and Explanation is: To draw the most stable conformation of 2-methylhexane as a Newman projection down the C2-C3 bond, we first need to understand the structure and the possible conformations of the molecule. Step 1: Drawing the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-253158","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/253158","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=253158"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/253158\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=253158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=253158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=253158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}