Advertisement

If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)

ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.

ENJOY UNLIMITED ACCES TO C&EN

Materials

Chemistry In Pictures

Chemistry in Pictures: Pappardelle Bolognese

by Alexandra Taylor
November 2, 2018

A micrograph shows wide bands folded
Credit: Kenneth Maly

Zachary Schroeder, an undergraduate chemistry major at Wilfrid Laurier University, prepared this liquid crystal as part of his honors thesis research. The compound combines a polycyclic heteroaromatic core with flexible alkoxy chains. Schroeder will further transform the compound pictured in a multistep synthesis to try to produce an organic semiconductor. But for now, the lab he works in is interested in determining how a material’s molecular structure influences the range of temperatures in which the liquid crystals will form. Schroeder’s research adviser, Kenneth Maly, took this image through a polarized optical microscope as the material transitioned from the liquid-crystal phase to a liquid one. The vibrant hues are the result of polarized light refracting as it passes through the sample.

Do science. Take pictures. Win money. Enter our photo contest here.

Related C&EN Content:

Organic semiconductor film enhances Raman signals

Chemistry in Pictures: A melting liquid

Semiconductor silver sulfide stretches like metal.

Article:

This article has been sent to the following recipient:

0 /1 FREE ARTICLES LEFT THIS MONTH Remaining
Chemistry matters. Join us to get the news you need.