The band gap value of the DBAP molecule was calculated as 5.60 eV‚ which indicates that the DBAP molecule has stable molecular structure and the value is comparable with the band gap energy value of the reported bio-active molecules [16]. The higher hardness and lower softness value indicates the stability of the DBAP molecule. The obtained lower chemical potential and electrophilicity index values are comparable with the potential bioactive molecules [14‚ 16]. DOS spectrum was also simulated by
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fourth edition ORGANIC CHEMISTRY Francis A. Carey University of Virginia Burr Ridge‚ IL Dubuque‚ IA Madison‚ WI New York San Francisco St. Louis Bangkok Bogotá Caracas Lisbon London Madrid Mexico City Milan New Delhi Seoul Singapore Sydney Taipei Toronto | v v Boston | e-Text Main Menu | Textbook Table of Contents | Study Guide Table of Contents McGraw-Hill Higher Education A Division of The McGraw-Hill Companies ORGANIC CHEMISTRY‚ FOURTH EDITION
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(giving CO2 and H2O) | Al2 O3 and vaporisation of alkane at 500°C; Cracking of Alkanes | Al2 O3 is used as a catalyst. Heat provides energy for breakage of C-C bonds. | UV light; Initiation step of FRS of alkanes by halogens * Not required for electrophilic addition reaction btw Halogens and alkenes | Br-Br 2Br Provides the energy for homolytic fission of Br-Br bond. Visible and infra-red radiations are unable to break covalent bonds while UV light can‚ because one quantum of UV light has sufficient
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Examples and Observations: "The big parts of a story should stick together‚ but the small parts need some stickum as well. When the big parts fit‚ we call that good feeling coherence; when sentences connect‚ we call it cohesion." (Roy Peter Clark‚ Writing Tools: 50 Essential Strategies for Every Writer. Little‚ Brown‚ 2006) Cohesion Analysis "The linguistic method perhaps most fully applied to the field of composition studies is what is generally called cohesion analysis. According to a comprehensive
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response by producing a resin high in volatile organic compounds resin which helps in inhibiting the growth of fungal (Benedict‚ 2009). The oil is extracted from the fragrant resin found in the agarwood tree trunk. In medicine‚ perfumery and other aromatic products‚ the resin and its oil are very valuable for their use. Agarwood oil is a highly prized type of oil due to its unique aroma. The presence of certain chemical compounds has contributed to the unique aroma and quality of the agarwood resin
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trans-9-(2-Phenylethenyl)anthracene based on the obtained melting point as well as the experimental IR. The IR spectra had peaks at 3026 and 956 indicating a C-H stretch and trans alkene respectively. There is also a peak at 722 corresponding to an aromatic substitution. The experimental melting point range was measured at 128.7 °-131.9° which also consistent with the literatures melting point range at 130 °-132° for trans-9-(2-Phenylethenyl)anthracene. The TLC analysis furthermore corresponded with our results
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A. Goal and Purpose: Session 1: In this lab‚ we will achieve a simple Friedel-Crafts alkylation of anthracene. The choice of anthracene as an aromatic substrate stems from two considerations. First‚ there is a question of regioselectivity. Second‚ anthracene and its derivatives are highly visible under UV light. Session 2: In this lab‚ we will complete a partial conversion of 9-acetylanthracene using m-chloroperoxybenzoic acid (mCPBA). We will also determine by NMR‚ the regiochemistry of the
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Structural Effects on Stability and Reactivity. Organic Chemstry Laboratory Structural Effects on Stability and Reactivity Introduction The concepts of stability and reactivity are fundamental to understanding chemistry. In this chapter we consider first the thermodynamic definition of chemical stability. We then consider chemical kinetics (Section 3.2) and how it can provide information about reactivity. We also explore how structure influences stability and reactivity. We want to learn how
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C H EM 301A - O rganic Chem istry L ecture N otes © Dr. Peter de Lijser‚ 2011 Introduction – Welcome to O-chem! “What is Organic Chemistry?” Organic chemistry is the chemistry of Carbon. “Why is Organic Chemistry Important for me?” Organic Chemistry is the central science for many other fields: • Medicine/Pharmacy: • Biochemistry: • Industrial Applications: • Reaction Mechanisms: What do "Organic Chemists" do? • Discover new reactions • Improve old reactions
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Acetylsalicylic Acid (Aspirin) Synthesis Telow‚ AJV Sumicad‚ CJ‚ Tavanlar‚ EMMT‚ Chem 40.1‚ Institute of Chemistry‚ University of the Philippines Los Baños I. Introduction Organic synthesis is the process where a desired organic compound is constructed or prepared from commercially available materials. The objective of organic synthesis is to design the simplest synthetic routes to a molecule. Aspirin‚ also known as acetylsalicylic acid is as salicylate drug often used as analgesic
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