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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The middle ages was a time where the ups and downs of society were completely unpredictable‚ where people lived in fear of random raids‚ and where the essence of everything that Rome had created was gone in a flash. Because of its erratic nature and reputation‚ it received many strong‚ contradictive names. Some called it the Dark Ages‚ others the age of feudalism‚ some even refer to it as the age of faith. Whatever they called it‚ it was still the same time. The same things still happened‚ and
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Romance in Medieval England Table of Contents Introduction…………………………………..page 1 Chapter One………………………………….page 2 Origins and Understanding Concepts Chapter Two………………………………….page 6 Courtly Love Chapter Three………………………………...page 8 Devotional and Mystical Romances Conclusion…………………………………...page 10 Biography…………………………………….page 11 Introduction What was “love” in the Middle Ages? What did it mean in Medieval England? These questions present a
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someone mentions The Middle Ages or Medieval times‚ most people automatically think of knights‚ the black plague‚ or classical music. How did people of The Middle Ages really live? Everyone was divided into ranks using the feudal system. Lords had it the best when it came to living situations and special treatments while peasants and serfs had life harsh. Most lords owned a Manor‚ which was a district where the lord could exercise certain privileges and rights in medieval Europe. Only the Lords could own
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Feudalism was a unique form of government that unified the people of medieval Europe. Farmers were the producers for crops and revenue in feudalism. The system was about different levels of the feudal pyramid that give to receive essential needs for survival. Feudalism was supported by the working force‚ the farmer serfs. Without them‚ the entire system would have collapsed. Farmer serfs were an essential part of feudalism. Feudalism was a system based off contracts of loyalty and power between the
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Medieval Times: Music and Instruments Secular and religious music in Medieval Europe was an important part of everyday life in the Middle Ages‚ it was most important time was during festivities and celebrations. The people in those times would celebrate on any occasions from all holidays that we celebrate like Christmas‚ to even before meals. In that period of time music was more important and a great form of entertainment than it is modern time.
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Name John Hartog Western Civilization: Ancient to Early Modern 12/1/13 Life of a Peasant in Medieval Europe During the time of Medieval Europe‚ a group‚ called the peasants‚ lived together under the ruling of a lord. Peasants got little respect but were expected to work long and hard hours just to provide for their families. There was little time for anything besides working. The peasant’s in Medieval Europe had an extremely hard and harsh lifestyle (www.historylearningsite.co.uk). When children
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