School of Chemistry @ Pietermaritzburg University of KwaZulu Natal Chemistry 310 Substitution reaction of Molybdenum Hexacarbonyl: the use of infrared spectroscopy as a structural tool in metal carbonyl chemistry. Abstract The synthesis of isomer A and B of [Mo(CO)4(PPh3)2] were prepared from molybdenum hexacarbonyl‚ sodium borohydride and triphenylphosphine with a % yield of 79% and 8.5% respectively. Two isomer was identified using IR spectra and from isomer A four C≡O stretching
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Analytica Chimica Acta 547 (2005) 188–196 Acomparative study of diesel analysis by FTIR‚ FTNIR and FT-Raman spectroscopy using PLS and artificial neural network analysis Vianney O. Santos Jr.‚ Flavia C.C. Oliveira‚ Daniella G. Lima‚ Andrea C. Petry‚ Edgardo Garcia‚ Paulo A.Z. Suarez‚ Joel C. Rubim ∗ Laborat´ rio de Materiais e Combust´veis (LMC)‚ Instituto de Qu´mica da Universidade de Brasilia‚ C.P. 04478‚ 70904-970 Bras´lia‚ DF‚ Brazil o ı ı ı Received 10 January 2005; received in revised
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techniques were used to extract a crude‚ eugenol‚ and acetyleugenol product sample. These samples were submitted for GC analysis and the normalization area percents were calculated to confirm their purity; for the crude sample it was 93.95% eugenol and 6.05% acetyleugenol‚ for the eugenol sample it was 100% eugenol and 0% acetyleugenol‚ and for the acetyleugenol sample it was 24.84% eugenol and 75.16% acetyleugenol. The IR spectrum was also found for the eugenol and acetyleguenol products‚ which confirmed
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Cheryl Baclit Chem 234 Experiment 4: Steam Distillation Introduction The purpose of this experiment is to extract Eugenol from Cloves using steam distillation as a purification technique and to transfer Eugenol from the aqueous phase to the MeCl2 phase. With steam distillation‚ the boiling point of a mixture of immiscible liquids is lower than the boiling points of the individual components. Water from the steam is one of the components of an immiscible liquid mixture. The vapor pressures of
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cloves using steam distillation‚ perform infrared spectroscopy on the sample‚ and analyze the IR to identify the major constituent in the clove oil. The first day the clove oil was removed from the ground cloves into an aqueous solution then removed from the water using DCM. The sample was left in a sealed container for one week and then isolated by drying the sample and removing the DCM. After the clove oil was isolated it was analyzed using IR spectroscopy. Experimental Isolation of Clove Oil: The
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Design and pharmacophore modeling of biaryl methyl eugenol analogs as breast cancer invasion inhibitors. Bioorganic & Medicinal Chemistry‚ 18‚ 496–507. Aboutabl‚ E.A.‚ El Tohamy‚ S.F.‚ De Footer‚ H.L.‚ & De Buyck‚ L.F. (1991). A comparative study of the essential oils from three Melaleuca species growing in Egypt. Flavour and Fragrance Journal‚ 6‚ 139–141. Adams‚ R.P. (1995). Identification of Essential Oil Components by Gas Chromatography/Mass Spectroscopy. Carol Stream‚ IL: Allured Publ. Corp. Bailey
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evaporated‚ the remaining solution‚ the clove oil‚ was a slight yellowish color. Data/Results: The infrared spectroscopy
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(24.09.2007) CONTENTS Introduction Classification of Terpenoids Isolation of mono and sesquiterpenoids General properties of Terpenoids General methods of structure elucidation Terpenoids Citral Menthol Camphor Eugenol Keywords Terpenes‚ isoprene‚ citral‚ menthol‚ camphor and eugenol 1 Introduction There are many different classes of naturally occurring compounds. Terpenoids also form a group of naturally occurring compounds majority of which occur in plants‚ a few of them have also been
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Preparation of N‚N-Diethyl-m-toluamide (DEET) and its Identification by IR and NMR Spectroscopy Eim A. Chemist CHEM 304 July 10‚ 2005 INTRODUCTION N‚N-Diethyl-m-toluamide (DEET) is the active ingredient in many insect repellants.1 In this experiment‚ DEET will be prepared from m-toluic acid through the intermediate acid chloride and then identified by its IR and proton NMR spectra. The overall reaction is a series of two acyl substitutions and is shown in Scheme 1 below: [pic] Scheme
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2: Isolation of Eugenol from Cloves Background; Readings on Vapor pressure‚ Raoult’s Law from TRO: A mixture of the essential oils‚ eugenol and acetyleugenol‚ will be steam distilled from cloves. These compounds are isolated from aqueous distillate by extraction into dichloromethane. The dichloromethane solution is shaken with aqueous sodium hydroxide‚ which will react with eugenol‚ to yield the sodium salt of eugenol in the basic aqueous layer
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