Prelab 5B Macrocyclic Synthesis OBJECTIVE: The objective this week is to produce Tetraphenylporphyrin and its metal complex. This will be carried out by condensation of 4 equivalents of Benzaldehyde and pyyrole in the presence of propanoic acid. The product will undergo UV/Visible Spectrum tests to determine its lambda max. The lambda max will show us the relationship between a conjugated system and the visible spectrum. PROCEDURE: Step 1: preparation of meso-tetraphenylporphyrin (TPP)
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Acoustic Theory and Synthesis Frequency: Frequency means the number of cycles per second and depending on the amount of cycles per second determines how high or low pitched the sound is and the time that it takes to complete one cycle is called the period. Frequency is measured in Hertz (Hz). And An average human is able to hear sounds between 20Hz and 20‚000Hz. As the cycles per second increases‚ the smaller the wavelengths become‚ therefore there is a higher frequency which will cause
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CHEM 3125 Experiment 4: Multistep synthesis of tetraphenylcyclopentadienone Overall Synthesis: CHEMICALS: wk 1: thiamine hydrochloride (1 g/student)‚ 95% ethanol (8 mls/ student)‚ 2M NaOH (5 mls/student)‚ benzaldehyde (4 mls/student) wk 2: 95% ethanol (30 mls/student) wk 3: acetic acid (6 mls/student)‚ ammonium nitrate (1 g/student)‚ 0.1g/ml cupric acetate (1.5 mls/student)‚ dichloromethane (6 mls/ student)‚ 30% acetone in heptanes (3 mls/student)‚ 95% ethanol (20 mls/student) wk 4:
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Multistep Synthesis of Tetraphenylcyclopentadienone In this laboratory experiment a synthesis was performed through several separate steps. The purpose of the experiment was to synthesize tetraphenylcyclopentadienone from benzaldehyde and to run reactions on carbonyl containing compounds. There was a total of three steps that led up to the synthesis of the final product‚ tetraphenylcyclopentadienone. The first step of the experiment was the condensation of benzaldehyde to yield
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Pat 1 Synthesis of 4-aryl-6-indolylpyridine-2-carbonitriles and evaluation of their biological activity Synthesis of 6-indolyl-4-aryl-3-cyanopyridine-2-one (1a-e) Employing the MCRs approach and microwave irradiation‚ an equimolar amounts of aromatic aldehyde‚ 3-acetylindole‚ ethyl cyanoacetate were reacted with excess of ammonium acetate in one-pot‚ reaction‚ under the microwave irradiation‚ afforded a novel series of 4-aryl-6-indolyl-nicotinonitrile-2-one derivatives 1a-e. Ethylene glycol was
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Available online at www.sciencedirect.com Nanomedicine: Nanotechnology‚ Biology‚ and Medicine xx (2011) xxx – xxx www.nanomedjournal.com Review Article Upconversion nanoparticles: synthesis‚ surface modification and biological applications Meng Wang‚ PhDa‚c ‚ Gopal Abbineni‚ MSb ‚ April Clevenger‚ MSb ‚ Chuanbin Mao‚ PhDb ‚ Shukun Xu‚ MSa‚⁎ a College of Sciences‚ Northeastern University‚ Shenyang‚ People’s Republic of China Department of Chemistry and Biochemistry‚ University of Oklahoma
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Microwave Synthesis of Benchmark Organo-iron complexes Chem 347/447 “Microwave synthesis of benchmark Organo-iron complexes” is an interesting article by Sean M. Garringer ‚ Andrew J. Hesse ‚ John R. Magers ‚ Kristopher R. Pugh ‚ Stacy A. O’Reilly and Anne M. Wilson which describes microwave- assisted technique in chemical synthesis. The authors detail the formation of various organo-iron species with the aid of a microwave. Using microwaves in chemical
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There are many causes of car accidents. Teenage drivers are involved in numerous crashes because of their immaturity. The radio‚ electronics‚ or other people can distract the driver. Accidents are also associated with bad weather. Even though speeding is against the law‚ individuals do it anyway‚ leading to lose of control over their vehicle. Drinking and driving is a very dangerous cause of car crashes. Traffic accidents can harm or possibly kill someone. People involved in these accidents may have
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Eng 100 Schantz 17 September 2012 Explanatory Summary of “Is Facebook Making Us Lonely” In the Stephen Marche’s May 2012 publication in The Atlantic‚ “Is Facebook Making us Lonely”‚ explores the history and usage of social networking along with the most recent theories in order to argue that social networking depends on the user’s motives not‚ social networking itself. Facebook does not create loneliness‚ but it does not exterminate it either. It all depends on ones usage. Marche begins his
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JOUR200 Assignment 6 What to submit We don’t have money to award in JOUR200‚ but in Assignment 6‚ we are looking for you to explain a subject. You must submit a 500-word explanatory story (plus or minus 50 words) about a topic of your own choosing. You are encouraged to use your story idea from Discussion Post 4 if that is viable. The story is due by 9 a.m. Wednesday‚ May 7‚ the last day of class. You must refer to a primary document and you must use in-person interviews with people on our
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