IR‚ mass‚ and NMR spectroscopy. The rate of reactions‚ and
Premium Chemical reaction Chemistry Ethanol
UV-Vis spectra was recorded for the colorless sample. The solution was irradiated using a lamp resulting in a purple solution and the UV-Vis spectrum was retaken. UV (): 524.92nm ε colourless (45.2M-1cm-1) coloured (760M-1cm-1) 1H NMR (300MHz‚ CDCl3) δ 7.26 (30H‚ m) 13C NMR DEPT (75MHz‚ CDCl3) δ 166.5‚ 149.0‚ 138.11‚ 137.9‚ 134.4‚ 134.4‚ 132.7‚ 132.01-126.13‚ 112.38. Results and Discussion The triphenylimidazole dimer that was synthesized displayed a melting range of 199.8-200.3 ºC which is higher
Premium Purple Carbon Nitrogen
Arene Molybdenum lab Introduction: Organometallic chemistry is the study of chemical compounds that contain carbon atoms bound to a metal atom. Organometallic compounds can contain main group elements‚ or more metallic elements such as zinc or carbon. These compounds tend to have carbon atoms bound to the metal center by σ-bonds. Alternatively‚ transition metals can be involved in the compound‚ which leads to a variety of interesting and diverse chemical characteristics. For example‚ a promising
Premium Metal Chemical compound Electron
and indeed there is a very small multiplet peak with integration equal to one hydrogen at 5.32 ppm; since the HCl hydrogen is labile and thus would most likely not show up as a clean singlet on the NMR spectrum‚ there is strong evidence in favor of bupropion hydrochloride as the major product. The 13C NMR spectrum is unable to show the presence of HCl since no carbon is present in the molecule‚ but it does agree well with what would be expected from just
Premium Water Chemistry Ethanol
obtained: 0.250 g 5. Volume of water used as recrystallizing solvent: 2 mL 6. Mass of purified salicylic acid: 0.134 g 7. Percent yield of purified salicylic acid from reaction: 63.5% 8. Melting point of purified product: 158-160 oC 9. Name of NMR solvent used and its chemical shifts: Acetone-d6‚ the chemical shifts are 29.9 and 206.7 for 13C Questions: 1. 2. The phenol group of methyl salicylate is a weak acid‚ therefore it reacts very swiftly with a
Premium Carboxylic acid Salicylic acid Acetic acid
2013 Date Submitted: March 14‚ 2013 Abstract: The product ratio of N-ethylsaccharin to O-ethylsaccharin that occurred due to alkylation with iodoethane at 80 oC was determined to be 81.5% to 18.5%‚ respectively‚ based on an analysis of the 1H NMR spectrum that was collected. The melting point range of 87.8-94.7 oC also indicated that the mixture was largely composed of N-ethylsaccharin. The more prevalent product structure is: C2H5I C2H5I And/Or And/Or
Premium Nucleophile
Introduction For the last week‚ specific tests had to be applied to determine the unknown solid that was given out randomly. Physical tests‚ solubility test‚ characteristic tests‚ NMR spectrums‚ and IR spectrums were all utilized to distinguish the identity of the solid. These assessments and a couple additional tests will be utilized again to determine the unknown liquid that was given to us in class. The other characteristics that will be looked at will be the boiling point‚ refracted index‚ and
Premium Chemistry Water Chemical substance
M12/4/PHYSI/HP3/ENG/TZ2/XX 22126515 Physics Higher level Paper 3 Candidate session number 0 0 Examination code Friday 11 May 2012 (morning) 2 1 hour 15 minutes 2 1 2 – 6 5 1 5 INSTRUCTIONS TO CANDIDATES • • • • • • • Write your session number in the boxes above. Do not open this examination paper until instructed to do so. Answer all of the questions from two of the Options. Write your answers in the boxes provided. A calculator is required for this paper. A clean copy of the
Premium Light Electromagnetic radiation Sound
percent yield of products was determined to be 51%. The melting point of Crop 1 was found to be 110-115 °C‚ and Crop 2 was found to be 37-90 °C indicating impurity in both crops. TLC analysis shows a less polar compound in Crop 1 than in Crop 2. IR and NMR data provide proof of benzene with a nitro group is present in Crop 1. Introduction: In this experiment an electrophilic aromatic substitution is performed. This is done by having the benzene ring attacked by an electrophile creating a carbocation
Premium Electrophilic aromatic substitution Aromaticity Organic reaction
filtration. The precipitate was allowed to dry for recrystallization. The product was removed from the filter paper and weighed. The weight of the product was 1.445g. NMR was conducted by mixing the dry product (0.35mg) with duderated chloroform (0.50ml) and mixing until the precipitate dissolved. The sample was then placed into the NMR. The NMR spectrum confirmed the product was benzocaine. The remainder of the sample was placed into a 250ml beaker for recrystallization. Methanol and deionized water were
Premium Water Distillation Ethanol