Unusually Large Young's Moduli of Amino Acid Molecular Crystals

Igor Lubomirsky, Ido Azuri, Elena Meirzadeh, David Ehre, Sidney R. Cohen, Andrew M. Rappe, Meir Lahav, Leeor Kronik

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Young's moduli of selected amino acid molecular crystals were studied both experimentally and computationally using nanoindentation and dispersion-corrected density functional theory. The Young modulus is found to be strongly facet-dependent, with some facets exhibiting exceptionally high values (as large as 44 GPa). The magnitude of Young's modulus is strongly correlated with the relative orientation between the underlying hydrogen-bonding network and the measured facet. Furthermore, we show computationally that the Young modulus can be as large as 70-90 GPa if facets perpendicular to the primary direction of the hydrogen-bonding network can be stabilized. This value is remarkably high for a molecular solid and suggests the design of hydrogen-bond networks as a route for rational design of ultra-stiff molecular solids.

Original languageEnglish
Pages (from-to)13566-13570
Number of pages5
JournalAngewandte Chemie - International Edition
Volume54
Issue number46
DOIs
Publication statusPublished - Nov 1 2015

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Molecular crystals
Amino acids
Elastic moduli
Amino Acids
Hydrogen bonds
Nanoindentation
Density functional theory

Keywords

  • amino acids
  • crystallography
  • density functional calculations
  • mechanical properties
  • Young's modulus

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis

Cite this

Lubomirsky, I., Azuri, I., Meirzadeh, E., Ehre, D., Cohen, S. R., Rappe, A. M., ... Kronik, L. (2015). Unusually Large Young's Moduli of Amino Acid Molecular Crystals. Angewandte Chemie - International Edition, 54(46), 13566-13570. https://doi.org/10.1002/anie.201505813

Unusually Large Young's Moduli of Amino Acid Molecular Crystals. / Lubomirsky, Igor; Azuri, Ido; Meirzadeh, Elena; Ehre, David; Cohen, Sidney R.; Rappe, Andrew M.; Lahav, Meir; Kronik, Leeor.

In: Angewandte Chemie - International Edition, Vol. 54, No. 46, 01.11.2015, p. 13566-13570.

Research output: Contribution to journalArticle

Lubomirsky, I, Azuri, I, Meirzadeh, E, Ehre, D, Cohen, SR, Rappe, AM, Lahav, M & Kronik, L 2015, 'Unusually Large Young's Moduli of Amino Acid Molecular Crystals', Angewandte Chemie - International Edition, vol. 54, no. 46, pp. 13566-13570. https://doi.org/10.1002/anie.201505813
Lubomirsky, Igor ; Azuri, Ido ; Meirzadeh, Elena ; Ehre, David ; Cohen, Sidney R. ; Rappe, Andrew M. ; Lahav, Meir ; Kronik, Leeor. / Unusually Large Young's Moduli of Amino Acid Molecular Crystals. In: Angewandte Chemie - International Edition. 2015 ; Vol. 54, No. 46. pp. 13566-13570.
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