Ferroelectric Polarization and Second Harmonic Generation in Supramolecular Cocrystals with Two Axes of Charge-Transfer

Ashwin Narayanan, Dennis Cao, Laszlo Frazer, Alok S. Tayi, Anthea K. Blackburn, Andrew C.H. Sue, John B. Ketterson, J. Fraser Stoddart, Samuel I Stupp

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Ferroelectricity in organic materials remains a subject of great interest, given its potential impact as lightweight information storage media. Here we report supramolecular charge-transfer cocrystals formed by electron acceptor and donor molecules that exhibit ferroelectric behavior along two distinct crystallographic axes. The solid-state superstructure of the cocrystals reveals that a 2:1 ratio of acceptor to donor molecules assemble into nearly orthogonal mixed stacks in which the molecules are positioned for charge-transfer in face-to-face and edge-to-face orientations, held together by an extended hydrogen-bonding network. Polarization hysteresis was observed along the face-to-face and edge-to-face axes at room temperature. The noncentrosymmetric nature of the cocrystals, required to observe ferroelectric behavior, is demonstrated using second harmonic generation measurements. This finding suggests the possibility of designing supramolecular arrays in which organic molecules support multidimensional information storage.

Original languageEnglish
Pages (from-to)9186-9191
Number of pages6
JournalJournal of the American Chemical Society
Volume139
Issue number27
DOIs
Publication statusPublished - Jul 12 2017

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Information Storage and Retrieval
Harmonic generation
Ferroelectric materials
Charge transfer
Polarization
Molecules
Hydrogen Bonding
Electrons
Data storage equipment
Ferroelectricity
Temperature
Hysteresis
Hydrogen bonds

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Ferroelectric Polarization and Second Harmonic Generation in Supramolecular Cocrystals with Two Axes of Charge-Transfer. / Narayanan, Ashwin; Cao, Dennis; Frazer, Laszlo; Tayi, Alok S.; Blackburn, Anthea K.; Sue, Andrew C.H.; Ketterson, John B.; Stoddart, J. Fraser; Stupp, Samuel I.

In: Journal of the American Chemical Society, Vol. 139, No. 27, 12.07.2017, p. 9186-9191.

Research output: Contribution to journalArticle

Narayanan, A, Cao, D, Frazer, L, Tayi, AS, Blackburn, AK, Sue, ACH, Ketterson, JB, Stoddart, JF & Stupp, SI 2017, 'Ferroelectric Polarization and Second Harmonic Generation in Supramolecular Cocrystals with Two Axes of Charge-Transfer', Journal of the American Chemical Society, vol. 139, no. 27, pp. 9186-9191. https://doi.org/10.1021/jacs.7b02279
Narayanan, Ashwin ; Cao, Dennis ; Frazer, Laszlo ; Tayi, Alok S. ; Blackburn, Anthea K. ; Sue, Andrew C.H. ; Ketterson, John B. ; Stoddart, J. Fraser ; Stupp, Samuel I. / Ferroelectric Polarization and Second Harmonic Generation in Supramolecular Cocrystals with Two Axes of Charge-Transfer. In: Journal of the American Chemical Society. 2017 ; Vol. 139, No. 27. pp. 9186-9191.
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