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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 20 (2015) pp 83-85

Polymer Versus Lead Conductive Polymer Investigated Electrochemically and by Micro-Raman Spectroscopy

Corrie Spradlin, Austin Anderson, John Beetar, Alfons Schulte, and Suzanne Lunsford*,†

Department of Chemistry, Wright State University, Dayton, Ohio,; Department of Physics, University of Central Florida, Orlando, Florida
Received March 10, 2015. Accepted April 20, 2015.

Published: 24 April 2015

Abstract. Nuclear magnetic resonance (NMR) is an indispensable spectroscopic method to determine structures of organic molecules. A 45 MHz NMR spectrometer was used to acquire spectra of several unknown liquids (alcohols, esters and ketones) run as neat samples. For the unknown alcohols, splitting of the OH peak which followed the (n + 1) rule was observed, and must be explained to students to avoid incorrect structural assignment. The OH peak in a primary, secondary and tertiary alcohol appeared as a triplet, doublet, and singlet, respectively. This experiment was introduced in the second-semester organic chemistry laboratory course as an exercise involving structural elucidation of unknown liquid using NMR and IR spectroscopic methods.

Key Words: Laboratories and Demonstrations; organic chemistry; catechol; electrochemical oxidation; reduction; Cyclic Voltammetry; Micro-Raman Spectroscopy

(*) Corresponding author. (E-mail:

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