Traditional way of synthesizing sensitive rhodamine starts with rhodamine B‚ amino compound‚ and some alkali additive in the presence of weak base. However‚ for RH-PY‚ the stearic hindrance of pyrene slows the reactivity‚ and the reaction does not go to completion. Therefore‚ the reaction procedure was modified as follows. First‚ HATU and DIPEA were used to activate the carboxyl group of rhodamine B‚ then the activated rhodamine B was reacted with 1-aminopyrene. By introducing this method‚ the reaction
Premium Ultraviolet Absorption spectroscopy Electromagnetic radiation
The dust in our homes and the air we breathe harbor a complex stew of chemicals. Some‚ like oxygen‚ sustain life. Others are pollution stemming from things like car exhaust or from tiny scraps of household products. A pair of new studies adds a level of much-needed detail about exactly how widespread such toxic exposures can be. A new analysis‚ published Wednesday in Environmental Science & Technology‚ reaffirmed that consumer product chemicals including phthalates‚ phenols and flame retardants are
Premium Brain Human brain Dust
Neuroplasticity is the process where the brain learns to acquire new skills or adapt to different experiences. It is a useful component for the mental capacity of a human being especially during their performances in the day to day lifestyles. This process involves changes in the brain where it includes replacement of injured tissues leading to an addition of neurons in the brain. After that‚ the reorganization of the information processing areas within the brain systems occurs. Whenever a brain
Premium Brain Psychology Nervous system
Introduction In this lab‚ caproic acid was synthesized in a multi-step process that involved the synthesis of three intermediates – diethyl n-butylmalonate‚ potassium n-butylmalonate‚ and n-butyl malonic acid respectively. An IR was used to characterize the starting material‚ n-bromobutane‚ and the first intermediate‚ diethyl n-butylmalonate; while IR and NMR were used to characterize the final product‚ caproic acid. Reactions‚ Mechanism and Theory Caproic acid a.k.a n-hexanoic acid is a carboxylic
Premium Distillation Carboxylic acid Alcohol
Chapter 15 Outline The Maritime Revolution to 1550 I. Global Maritime Expansion Before 1450 A. The Pacific Ocean -Historians have debated for years about Polynesian people and their sailing.Despite traveling over the vast Pacific Ocean and not being able to navigateusing the land (because of their distance from it‚ they could not follow the shoreline) The Polynesians left no written records on how they navigated‚ andhistorians debate over whether they were actually able to navigate
Premium Marketing Management Balance sheet
Statistics is the study of the collection‚ organization‚ analysis‚ interpretation‚ and presentation of data. It deals with all aspects of this‚ including the planning of data collection in terms of the design of surveys and experiments. The word statistics‚ when referring to the scientific discipline‚ is singular‚ as in "Statistics is an art. "This should not be confused with the word statistic‚ referring to a quantity (such as mean or median) calculated from a set of data‚ whose plural is statistics ("this
Premium Statistics
well and carries only good intentions. Theo two characters deliver orations that are very appealing to the people of Pome Antony provideo a more effective rhetorical speech through his use of logo‚ and patho‚ Although Brutuo gave a stronger ethical appeal‚ Antony proved his worthiness as well. Brutus beging his opeech by telling the people "believe me for mine honor and have respect to mine honour" and asking to hold their opinion‚ until they have completely listened
Premium Julius Caesar Roman Republic Mark Antony
The general appeal of Michelle Obama is to black Americans and the battle of at last we had made it to the white house. She appeals not just to the old‚ but to the youth she shows the youth that we are significant and to the old the battles we have overcome (Griffin‚ 2011). She appealed to them by decreasing childhood obesity‚ giving girls and military families opportunities for education. Through Michelle Obama‚ they see themselves. She acts on the change that the world is doing and that this is
Premium Barack Obama United States Democratic Party
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:
Premium Chemical reaction Chemistry Ethanol
Analysis of the Non-Correspondence between Central Luzon State University Business Administration sophomore students’ major field of study and their freshmen preferred accounting course Title Page Approval Sheet Biographical Sketch Acknowledgement Table of Contents List of Figures List of Tables List of Appendices I. The Problem and its Background Introduction Statement of the Problem Objectives of the Study Significance of the Study Scope and Limitation Definition of Terms Conceptual
Free Decision making software Decision theory Decision making