Table of Contents

September 2005
Volume 82, Issue 9
Pages 1271-1423
About the Cover:

Colors in Liquid Crystals. Cholesteric liquid crystals are used to spatially map regions of different temperature. In the JCE Classroom Activity, students investigate the relationship between temperature and composition and the reflected and transmitted colors of a common nanoscale material, the cholesteric liquid crystal. In the photograph six thermoelectric devices (see J. Chem. Educ. 1996, 73, 940-946) are located under the liquid crystal as a source of heat.

For Selected:

Chemical Education Today

Teaching Science Amid Controversy

John W. Moore
p 1271
Publication Date (Web): September 1, 2005 (Editorial)
DOI: 10.1021/ed082p1271
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Q and A Session

Erica K. Jacobsen
p 1273
Publication Date (Web): September 1, 2005 (Editorial)
DOI: 10.1021/ed082p1273
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Research Advances: Nanoshells versus Cancer Cells, Sex Pheromone of Cockroach Identified, New Fluorophores Unmasked by Chemical Reaction

Angela G. King
p 1274
Publication Date (Web): September 1, 2005 (Report)
DOI: 10.1021/ed082p1274

Communicating the Importance of Undergraduate Research to Legislators

Kerry Karukstis
p 1279
Publication Date (Web): September 1, 2005 (Report)
DOI: 10.1021/ed082p1279

Teaching High School Chemistry as a Second Career. Summary of a Presidential Symposium

Maureen A. Scharberg
p 1281
Publication Date (Web): September 1, 2005 (Report)
DOI: 10.1021/ed082p1281

An Interview with Annis Hapkiewicz, 2005 Award Winner

JCE staff
p 1287
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1287

Constructivism and Information Technology at Columbia: A Journey from the Wilderness to the Promised Land. 2004 George C. Pimentel Award

Nicholas J. Turro
p 1292
Publication Date (Web): September 1, 2005 (Commentary)
DOI: 10.1021/ed082p1292
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CHED Outreach Efforts

Morton Z. Hoffman
p 1302
Publication Date (Web): September 1, 2005 (Report)
DOI: 10.1021/ed082p1302

Potassium Hydroxide

Jay A. Young
p 1304
Publication Date (Web): September 1, 2005 (Communication)
DOI: 10.1021/ed082p1304

Potassium Nitrate

Jay A. Young
p 1305
Publication Date (Web): September 1, 2005 (Communication)
DOI: 10.1021/ed082p1305

News and Announcements

JCE staff
p 1306
Publication Date (Web): September 1, 2005 (News and Announcements)
DOI: 10.1021/ed082p1306
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Some Footnotes on the History of Masurium

H. J. Wagner
p 1309
Publication Date (Web): September 1, 2005 (Letter)
DOI: 10.1021/ed082p1309
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More on Element 43

George B. Kauffman
p 1310
Publication Date (Web): September 1, 2005 (Letter)
DOI: 10.1021/ed082p1310.1
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An Improved Preparation of 2,4-Dinitrophenylhydrazine Reagent

Ben Ruekberg and Eric Rossoni
p 1310
Publication Date (Web): September 1, 2005 (Letter)
DOI: 10.1021/ed082p1310.2
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A Model for the Chemical Bond; J. Chem. Educ. 2004, 81, 427-435

Valerio Magnasco
p 1311
Publication Date (Web): September 1, 2005 (Addition/Correction)
DOI: 10.1021/ed082p1311
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Make Your Mark in Science. Creativity, Presenting, Publishing, and Patents. A Guide for Young Scientists (Ascheron, Claus; Kickuth, Angela)

Jeffrey Kovac
p 1313
Publication Date (Web): September 1, 2005 (Book and Media Review)
DOI: 10.1021/ed082p1313.1
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Encyclopedia of Analytical Science, Second Edition (Worsfold, Paul; Tonshend, Alan; Poole, Colin)

Robert Q. Thompson
p 1313
Publication Date (Web): September 1, 2005 (Book and Media Review)
DOI: 10.1021/ed082p1313.2
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Ewing's Analytical Instrumentation Handbook, 3rd Edition (Cazes, Jack)

Jack K. Steehler
p 1315
Publication Date (Web): September 1, 2005 (Book and Media Review)
DOI: 10.1021/ed082p1315
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Chemistry for Everyone

Chemistry of Moth Repellents

Gabriel Pinto
p 1321
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1321
History, Education, and Documentation

Moth Repellent Chemicals

William F. Coleman
p 1324
Publication Date (Web): September 1, 2005 (Tech Report)
DOI: 10.1021/ed082p1324
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In the Classroom

Using Building-Block Puzzles To Practice Drawing Organic Mechanisms

Ender Erdik
p 1325
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1325
History, Education, and Documentation

Improving Conceptions in Analytical Chemistry: ci Vi = cf Vf

Arnaldo Carrasquillo Jr., Margarita Rodríguez-López
p 1327
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1327

Understanding Rotation about a C=C Double Bond

Susan E. Barrows and Thomas H. Eberlein
p 1329
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1329
History, Education, and Documentation

Cis and Trans Isomers of Cycloalkenes

Susan E. Barrows and Thomas H. Eberlein
p 1334
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1334
History, Education, and Documentation

Application of ChemDraw NMR Tool: Correlation of Program-Generated 13C Chemical Shifts and pKa Values of para-Substituted Benzoic Acids

Hongyi Wang
p 1340
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1340
History, Education, and Documentation

A Networked NMR Spectrometer: Configuring a Shared Instrument

Bal Barot , Jan Kosinski and Mark Sinton , David Alonso , G. William Mutch , Peter Wong and Steven Warren
p 1342
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1342

Interlaboratory Collaborations in the Undergraduate Setting

Elise G. Megehee , Alison Hyslop and Richard J. Rosso
p 1345
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1345
History, Education, and Documentation

In the Laboratory

Synthesis and Physical Properties of Liquid Crystals: An Interdisciplinary Experiment

Gerald R. Van Hecke , Kerry K. Karukstis , Hanhan Li , Hansford C. Hendargo , Andrew J. Cosand and Marja M. Fox
p 1349
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1349
History, Education, and Documentation

Rotational Mobility in a Crystal Studied by Dielectric Relaxation Spectroscopy. An Experiment for the Physical Chemistry Laboratory

Madalena S. C. Dionísio , Hermínio P. Diogo , J. P. S. Farinha and Joaquim J. Moura-Ramos
p 1355
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1355
History, Education, and Documentation

Colors in Liquid Crystals

George Lisensky and Elizabeth Boatman
p 1360A
Publication Date (Web): September 1, 2005 (Activity)
DOI: 10.1021/ed082p1360A

Hands-on Classroom Photolithography Laboratory Module To Explore Nanotechnology

Scott J. Stelick and William H. Alger , Jesse S. Laufer , Anna M. Waldron and Carl A. Batt
p 1361
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1361
History, Education, and Documentation

Introduction to Photolithography: Preparation of Microscale Polymer Silhouettes

Kimberly L. Berkowski , Kyle N. Plunkett , Qing Yu and Jeffrey S. Moore
p 1365
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1365
History, Education, and Documentation

Making and Using a Sensing Polymeric Material for Cu2+: An Introduction to Polymers and Chemical Sensing

Jean R. Paddock , Anne T. Maghasi , William R. Heineman and Carl J. Seliskar
p 1370
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1370
History, Education, and Documentation

Electropolymerized Conducting Polymer as Actuator and Sensor Device: An Undergraduate Electrochemical Laboratory Experiment

María T. Cortés and Juan C. Moreno
p 1372
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1372
History, Education, and Documentation

Plastic Antibodies: Molecular Recognition with Imprinted Polymers. An Introductory Polymer Chemistry Laboratory Investigation

Gregory T. Rushton , Brian Furmanski and Ken D. Shimizu
p 1374
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1374
History, Education, and Documentation

Thermal Degradation and Identification of Heat-Sensitive Polymers. Applications of Pyrolysis and Distillation and Instrumental Methods of Analysis

Stuart C. Clough and Emma W. Goldman
p 1378
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1378
History, Education, and Documentation

A Green Polymerization of Aspartic Acid for the Undergraduate Organic Laboratory

George D. Bennett
p 1380
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1380
History, Education, and Documentation

Organic Spectroscopy Laboratory: Utilizing IR and NMR in the Identification of an Unknown Substance

Timothy D. Shine and Neil M. Glagovich
p 1382
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1382

NMR Analysis of Unknowns: An Introduction to 2D NMR Spectroscopy

David E. Alonso and Steven E. Warren
p 1385
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1385
History, Education, and Documentation

Monoterpene Unknowns Identified Using IR, 1H-NMR, 13C-NMR, DEPT, COSY, and HETCOR

Lisa T. Alty
p 1387
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1387
History, Education, and Documentation

Measurement of the Isotopic Ratio of 10B/11B in NaBH4 by 1H NMR

Murray Zanger and Guillermo Moyna
p 1390
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1390
History, Education, and Documentation

Diels–Alder Synthesis of endo-cis-N-Phenylbicyclo[2.2.2]oct-5-en-2,3-dicarboximide

Marsha R. Baar and Kristin Wustholz
p 1393
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1393
History, Education, and Documentation

The Entrance and Exit Effects in Small Electrochemical Filter-Press Reactors Used in the Laboratory

Angel Frías-Ferrer , José González-García , Verónica Sáez , Eduardo Expósito , Carlos M. S ánchez-Sánchez , Vicente Montiel and Antonio Aldaz , Frank C. Walsh
p 1395
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1395
History, Education, and Documentation

A Simple Low-Cost Lock-In Amplifier for the Laboratory

Sandip K. Sengupta , Jessica M. Farnham and James E. Whitten
p 1399
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1399
History, Education, and Documentation

Research: Science and Education

"It Gets Me to the Product": How Students Propose Organic Mechanisms

Gautam Bhattacharyya and George M. Bodner
p 1402
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1402
History, Education, and Documentation

The Same or Not the Same: Equivalence as an Issue in Educational Research

Scott E. Lewis and Jennifer E. Lewis
p 1408
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1408
History, Education, and Documentation

Reduction of Iodine by Phosphorus(I): Integration of the Rate Equation

Kenneth Kustin , Edward W. Ross
p 1413
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1413
History, Education, and Documentation

Information • Textbooks • Media • Resources

Self-Consistent Field Calculations on Atoms Using Excel

Gary G. Hoffman
p 1418
Publication Date (Web): September 1, 2005 (Article)
DOI: 10.1021/ed082p1418
History, Education, and Documentation

More Interactive Spreadsheets in JCE WebWare

Edward W. Fedosky , William F. Coleman
p 1423
Publication Date (Web): September 1, 2005 (Tech Report)
DOI: 10.1021/ed082p1423.1
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Self-Consistent Field Calculations Spreadsheet

Gary G. Hoffman
p 1423
Publication Date (Web): September 1, 2005 (Tech Report)
DOI: 10.1021/ed082p1423.2
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