| Title: |
Unusually Large Young’s Moduli of Amino Acid Molecular Crystals |
| Authors: |
Azuri, Ido; Meirzadeh, Elena; Ehre, David; Cohen, Sidney R.; Rappe, Andrew M.; Lahav, Meir; Lubomirsky, Igor; Kronik, Leeor |
| Contributors: |
Deutsch-Israelische Projektkooperation (DIP); Lise Meitner Minerva Center for Computational Chemistry; Israel Science Foundation; Gerhard Schmidt Center for Supramolecular Structures at the Weizmann Institute; US Office of Naval Research; Weston Visiting Professorship Program |
| Source: |
Angewandte Chemie ; volume 127, issue 46, page 13770-13774 ; ISSN 0044-8249 1521-3757 |
| Publisher Information: |
Wiley |
| Publication Year: |
2015 |
| Collection: |
Wiley Online Library (Open Access Articles via Crossref) |
| Description: |
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. |
| Document Type: |
article in journal/newspaper |
| Language: |
German |
| DOI: |
10.1002/ange.201505813 |
| Availability: |
https://doi.org/10.1002/ange.201505813; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fange.201505813; https://onlinelibrary.wiley.com/doi/pdf/10.1002/ange.201505813 |
| Rights: |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
| Accession Number: |
edsbas.18B27F61 |
| Database: |
BASE |