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Charge Delocalization and Bulk Electronic Conductivity in the Mixed-Valence Metal–Organic Framework Fe(1,2,3-triazolate)2(BF4)x

Overview of attention for article published in Journal of the American Chemical Society, June 2018
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • Good Attention Score compared to outputs of the same age (77th percentile)
  • Good Attention Score compared to outputs of the same age and source (67th percentile)

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9 X users
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1 Wikipedia page

Citations

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147 Dimensions

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139 Mendeley
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Title
Charge Delocalization and Bulk Electronic Conductivity in the Mixed-Valence Metal–Organic Framework Fe(1,2,3-triazolate)2(BF4)x
Published in
Journal of the American Chemical Society, June 2018
DOI 10.1021/jacs.8b03696
Pubmed ID
Authors

Jesse G. Park, Michael L. Aubrey, Julia Oktawiec, Khetpakorn Chakarawet, Lucy E. Darago, Fernande Grandjean, Gary J. Long, Jeffrey R. Long

Abstract

Metal-organic frameworks are of interest for use in a variety of electrochemical and electronic applications, although a detailed understanding of their charge transport behavior, which is of critical importance for enhancing electronic conductivities, remains limited. Herein, we report isolation of the mixed-valence framework materials, Fe(1,2,3-triazolate)2(BF4) x (tri- = 1,2,3-triazolate; x = 0.09, 0.22, and 0.33), obtained from the stoichiometric chemical oxidation of the poorly-conductive iron(II) framework Fe(tri)2, and find that the conductivity increases dramatically with iron oxidation level. Notably, the most oxidized variant, Fe(1,2,3-triazolate)2(BF4)0.33 , displays a room-temperature conductivity of 0.3(1) S/cm, which represents an increase of eight orders of magnitude from that of the parent material and is one of the highest conductivity values reported among three-dimensional metal-organic frameworks. Detailed characterization of Fe(tri)2 and the Fe(1,2,3-triazolate)2(BF4) x materials via powder X-ray diffraction, Mössbauer spectroscopy, and IR and UV-vis-NIR diffuse reflectance spectroscopies reveals that the high conductivity arises from intervalence charge transfer between mixed-valence low-spin FeII/III centers. Further, Mössbauer spectroscopy indicates the presence of a valence-delocalized FeII/III species in Fe(1,2,3-triazolate)2(BF4) x at 290 K, one of the first such observations for a metal-organic framework. The electronic structure of valence-pure Fe(tri)2 and the charge transport mechanism and electronic structure of mixed-valence Fe(1,2,3-triazolate)2(BF4) x frameworks are discussed in detail.

X Demographics

X Demographics

The data shown below were collected from the profiles of 9 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 139 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 139 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 30 22%
Student > Master 18 13%
Researcher 16 12%
Student > Doctoral Student 13 9%
Student > Bachelor 7 5%
Other 18 13%
Unknown 37 27%
Readers by discipline Count As %
Chemistry 68 49%
Materials Science 7 5%
Engineering 4 3%
Chemical Engineering 3 2%
Energy 3 2%
Other 9 6%
Unknown 45 32%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 9. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 May 2021.
All research outputs
#3,696,733
of 23,090,520 outputs
Outputs from Journal of the American Chemical Society
#13,154
of 62,409 outputs
Outputs of similar age
#72,279
of 328,349 outputs
Outputs of similar age from Journal of the American Chemical Society
#157
of 483 outputs
Altmetric has tracked 23,090,520 research outputs across all sources so far. Compared to these this one has done well and is in the 83rd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 62,409 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.9. This one has done well, scoring higher than 78% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 328,349 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 77% of its contemporaries.
We're also able to compare this research output to 483 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 67% of its contemporaries.