Volume 44, Issue 45 p. 7432-7435
Communication

Harder than Diamond: Determining the Cross-Sectional Area and Young's Modulus of Molecular Rods

Lior Itzhaki

Lior Itzhaki

Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel, Fax: (+972) 3-535-1250

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Eli Altus Prof.

Eli Altus Prof.

Faculty of Mechanical Engineering, Technion, Israel Institute of Technology, Haifa, 32000, Israel

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Harold Basch Prof.

Harold Basch Prof.

Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel, Fax: (+972) 3-535-1250

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Shmaryahu Hoz Prof.

Shmaryahu Hoz Prof.

Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel, Fax: (+972) 3-535-1250

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First published: 16 November 2005
Citations: 51

Graphical Abstract

Hard and straight: Diamond is the hardest material known, yet polyyne—a molecular rod comprised of CC units—resists longitudinal compression with a Young's Modulus 40 times larger than diamond, whereas [n]staffanes have a Young's Modulus close to that of diamond. Mechanical engineering provides the connection between the point at which a rod buckles under longitudinal load and its cross-sectional area.

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