These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Interpenetration as a mechanism for negative thermal expansion in the metal-organic framework Cu3(btb)2 (MOF-14).
    Author: Wu Y, Peterson VK, Luks E, Darwish TA, Kepert CJ.
    Journal: Angew Chem Int Ed Engl; 2014 May 12; 53(20):5175-8. PubMed ID: 24692065.
    Abstract:
    Metal-organic framework materials (MOFs) have recently been shown in some cases to exhibit strong negative thermal expansion (NTE) behavior, while framework interpenetration has been found to reduce NTE in many materials. Using powder and single-crystal diffraction methods we investigate the thermal expansion behavior of interpenetrated Cu3(btb)2 (MOF-14) and find that it exhibits an anomalously large NTE effect. Temperature-dependent structural analysis shows that, contrary to other interpenetrated materials, in MOF-14 the large positive thermal expansion of weak interactions that hold the interpenetrating networks together results in a low-energy contractive distortion of the overall framework structure, demonstrating a new mechanism for NTE.
    [Abstract] [Full Text] [Related] [New Search]