Formation of Microtornadoes, Microgeysers, and Liesegang Banding Patterns from HCl-NH3 Nanoparticulate, Topochemically Arranged Experimental Systems Abstract: In this report, we will analyze the mechanisms by which various micro-structures form, from diffusion to the formation of a reaction front and to convection. The nucleation to growth theory will also be discussed using the HCl-NH3 nanoparticulate experimental system to better understand how aerosols chemically function in the atmosphere. The experiments outlined in a series of papers published by Dr. Stephen Thompson […]
The Preparation of Nickel(II) Complexes: Linkage Isomers By: Trinidad Reyes Introduction The purpose of the nickel (II) complex: linkage isomers experiment was to investigate how the ambidentate properties of the NO2 ligand behave when it is bonded to a nickel atom with respect to its place in the spectrochemical series. The NO2 ligand can be classified as an ambidentate ligand because this ligand contains more than one potential donor atom. Nitrogen and oxygen are considered donor atoms because due elements […]
Green Oxidation of Menthol Enantiomers and Analysis by Circular Dichroism Spectroscopy by: Rita L. Wheeler A green oxidation of (-)-menthol to (-)-menthone was achieved through use of calcium hypochlorite. While many oxidation reagents are detrimental to the environment or expensive to acquire, calcium hypochlorite is cheap, produces little waste and facilitates a good yield of product. IR, CD, and NMR spectroscopic methods were used to confirm the identity and purity of the product. The final percent yield for the reaction […]
Purpose: Recrystallization To obtain a pure unknown sample by the means of recrystallization To calculate percent recovery through recrystallization Melting Point To identify an unknown by mixed melting point with at least two known compounds To identify at least two students having the same unknown Table of Reagents: Procedure: Exp 1A Recrystallization Pre-heat a large volume of water to 85-90°C Obtain solid unknown from TA. Record code number. Weigh ~2.00g, retain a very small portion for use as […]
A Qualitative Analysis of Two Organic Unknowns: Structural Elucidation and Subsequent Compound Derivation via the Direct Observation of Chemical, Physical, and Spectroscopic Molecular Properties Introduction The characterization and classification of an unknown organic compound (or multiple compounds) is a frequently implemented lab testing the cumulative skills of undergraduate students or lab novices at various Universities and related institutions. Moreover, necessitating students to apply various techniques learned throughout the lab course exhibiting individually varying degrees of retention in us of […]
Investigating Substitution Reactions of Various Alcohol-Containing Compounds Kristen Powell, Morgan Sanders, Robert Walker Department of Chemistry and Chemical Biology, IUPUI, 402 N. Blackford St., Indianapolis, IN 46202 This is a Laboratory Journal of Organic Chemistry Note for synthesis reaction data obtained in the Organic Chemistry Laboratory—All information was experimentally conducted. This article should be used as a reference when conducting your own synthesis reactions. Three reactions containing alcohol groups, on primary and secondary carbons reacting with halide groups have been […]
