{"id":190045,"date":"2025-02-11T05:57:47","date_gmt":"2025-02-11T05:57:47","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=190045"},"modified":"2025-02-11T05:57:50","modified_gmt":"2025-02-11T05:57:50","slug":"isopentyl-acetate-banana-oil-ir-spectrum-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/11\/isopentyl-acetate-banana-oil-ir-spectrum-2\/","title":{"rendered":"Isopentyl Acetate (Banana Oil)- IR Spectrum"},"content":{"rendered":"\n<p>Isopentyl Acetate (Banana Oil)- IR Spectrum<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/02\/image-287-1024x841.png\" alt=\"\" class=\"wp-image-190046\"\/><\/figure>\n\n\n\n<p>Transmittance 95 90 85 80- 75 70 65- 60- 55 50 45 40 35 30 25 20 15 4000 3500 3318.54 3000 2000 Wavenumbers (cm-1) 2500 1636.85 1500 1276.94 1000 500 414.07 404.67<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>Isopentyl acetate, commonly known as banana oil, is an ester with the chemical formula C\u2087H\u2081\u2084O\u2082. Its infrared (IR) spectrum provides valuable insights into its molecular structure by identifying characteristic functional group vibrations.<\/p>\n\n\n\n<p><strong>Key Absorption Peaks in the IR Spectrum of Isopentyl Acetate:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Alkane C\u2013H Stretch (2960\u20132870 cm\u207b\u00b9):<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The broad absorption band around 2960 cm\u207b\u00b9 corresponds to the C\u2013H stretching vibrations of the alkyl chains. This is typical for aliphatic hydrocarbons. \ue200cite\ue202turn0search4\ue201<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>C=O Stretch (1740\u20131725 cm\u207b\u00b9):<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A strong absorption near 1740 cm\u207b\u00b9 is attributed to the stretching vibration of the carbonyl group (C=O) in the ester functional group. This peak is a definitive indicator of ester presence. \ue200cite\ue202turn0search4\ue201<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>C\u2013O Stretch (1300\u20131000 cm\u207b\u00b9):<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The absorption band between 1300 and 1000 cm\u207b\u00b9 is associated with the C\u2013O stretching vibrations in the ester group. This region often exhibits multiple peaks due to the complex nature of ester linkages. \ue200cite\ue202turn0search4\ue201<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Alkane C\u2013H Bend (1450\u20131375 cm\u207b\u00b9):<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The bending vibrations of C\u2013H bonds in the alkyl groups appear in this region, contributing to the overall fingerprint of the compound. \ue200cite\ue202turn0search4\ue201<\/li>\n<\/ul>\n\n\n\n<p><strong>Additional Observations:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Absence of O\u2013H Stretch:<\/strong><\/li>\n\n\n\n<li>Unlike alcohols, isopentyl acetate lacks an O\u2013H group, so there is no broad O\u2013H stretching absorption around 3200\u20133550 cm\u207b\u00b9. \ue200cite\ue202turn0search4\ue201<\/li>\n\n\n\n<li><strong>Fingerprint Region (600\u20131500 cm\u207b\u00b9):<\/strong><\/li>\n\n\n\n<li>The region below 1500 cm\u207b\u00b9, known as the fingerprint region, contains complex absorptions unique to each compound. While specific peaks in this region can be challenging to assign without detailed analysis, they contribute to the compound&#8217;s unique spectral fingerprint. \ue200cite\ue202turn0search4\ue201<\/li>\n<\/ul>\n\n\n\n<p>By analyzing these characteristic absorption peaks, one can confirm the presence of ester functional groups and the specific structure of isopentyl acetate. This IR spectral analysis is essential for structural elucidation and quality control in chemical synthesis and analysis.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Isopentyl Acetate (Banana Oil)- IR Spectrum Transmittance 95 90 85 80- 75 70 65- 60- 55 50 45 40 35 30 25 20 15 4000 3500 3318.54 3000 2000 Wavenumbers (cm-1) 2500 1636.85 1500 1276.94 1000 500 414.07 404.67 The Correct Answer and Explanation is : Isopentyl acetate, commonly known as banana oil, is an [&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-190045","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/190045","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=190045"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/190045\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=190045"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=190045"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=190045"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}