Mechanical Properties of a Series of Macro- and Nanodimensional Organic Cocrystals Correlate with Atomic Polarizability

Thilini P. Rupasinghe, Kristin Hutchins, Bimali S. Bandaranayake, Suman Ghorai, Chandana Karunatilake, Dejan Krešimir Bučar, Dale C. Swenson, Mark A. Arnold, Leonard R. Macgillivray, Alexei V. Tivanski

Research output: Contribution to journalArticlepeer-review

Abstract

© 2015 American Chemical Society. A correlation between Youngs modulus, as determined by using nanoindentation atomic force microscopy (AFM), and atomic polarizability is observed for members of a series of cocrystals based on systematic changes to one cocrystal component. Time domain spectroscopy over terahertz frequencies (THz-TDS) is used for the first time to directly measure the polarizability of macro- and nanosized organic solids. Cocrystals of both macro- and nanodimensions with highly polarizable atoms result in softer solids and correspondingly higher polarizabilities.
Original languageEnglish
Pages (from-to)12768-12771
JournalJournal of the American Chemical Society
StatePublished - Oct 14 2015

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