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Title: Interpenetration as a Mechanism for Negative Thermal Expansion in the Metal-Organic Framework Cu 3(btb) 2 (MOF-14)

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 Cu 3(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.

Authors:
; ; ; ;  [1];  [2]
  1. Sydney
  2. (
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
FOREIGN
OSTI Identifier:
1131354
Resource Type:
Journal Article
Resource Relation:
Journal Name: Angew. Chem. Int. Ed.; Journal Volume: 53; Journal Issue: (20) ; 05, 2014
Country of Publication:
United States
Language:
ENGLISH

Citation Formats

Wu, Yue, Peterson, Vanessa K., Luks, Emily, Darwish, Tamim A., Kepert, Cameron J., and ANSTO). Interpenetration as a Mechanism for Negative Thermal Expansion in the Metal-Organic Framework Cu3(btb)2 (MOF-14). United States: N. p., 2014. Web. doi:10.1002/anie.201311055.
Wu, Yue, Peterson, Vanessa K., Luks, Emily, Darwish, Tamim A., Kepert, Cameron J., & ANSTO). Interpenetration as a Mechanism for Negative Thermal Expansion in the Metal-Organic Framework Cu3(btb)2 (MOF-14). United States. doi:10.1002/anie.201311055.
Wu, Yue, Peterson, Vanessa K., Luks, Emily, Darwish, Tamim A., Kepert, Cameron J., and ANSTO). Fri . "Interpenetration as a Mechanism for Negative Thermal Expansion in the Metal-Organic Framework Cu3(btb)2 (MOF-14)". United States. doi:10.1002/anie.201311055.
@article{osti_1131354,
title = {Interpenetration as a Mechanism for Negative Thermal Expansion in the Metal-Organic Framework Cu3(btb)2 (MOF-14)},
author = {Wu, Yue and Peterson, Vanessa K. and Luks, Emily and Darwish, Tamim A. and Kepert, Cameron J. and ANSTO)},
abstractNote = {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.},
doi = {10.1002/anie.201311055},
journal = {Angew. Chem. Int. Ed.},
number = (20) ; 05, 2014,
volume = 53,
place = {United States},
year = {Fri Jul 11 00:00:00 EDT 2014},
month = {Fri Jul 11 00:00:00 EDT 2014}
}