Million-fold electrical conductivity enhancement in Fe2(DEBDC) versus Mn2(DEBDC) (E = S, O)

Lei Sun; Christopher H. Hendon; Mikael A. Minier; Aron Walsh; Mircea Dincə

doi:10.1021/jacs.5b02897

Million-fold electrical conductivity enhancement in Fe₂(DEBDC) versus Mn₂(DEBDC) (E = S, O)

Lei Sun
, Christopher H. Hendon
, Mikael A. Minier
, Aron Walsh
, Mircea Dincə

Department of Physics

Research output: Contribution to journal › Article › peer-review

338 Scopus citations

Abstract

Reaction of FeCl₂ and H₄DSBDC (2,5-disulfhydrylbenzene-1,4-dicarboxylic acid) leads to the formation of Fe₂(DSBDC), an analogue of M₂(DOBDC) (MOF-74, DOBDC^4- = 2,5-dihydroxybenzene-1,4-dicarboxylate). The bulk electrical conductivity values of both Fe₂(DSBDC) and Fe₂(DOBDC) are ~6 orders of magnitude higher than those of the Mn²⁺ analogues, Mn₂(DEBDC) (E = O, S). Because the metals are of the same formal oxidation state, the increase in conductivity is attributed to the loosely bound Fe²⁺ β-spin electron. These results provide important insight for the rational design of conductive metal-organic frameworks, highlighting in particular the advantages of iron for synthesizing such materials.

Original language	English
Pages (from-to)	6164-6167
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	137
Issue number	19
DOIs	https://doi.org/10.1021/jacs.5b02897
State	Published - 20 May 2015

Bibliographical note

Publisher Copyright:
© 2015 American Chemical Society.

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10.1021/jacs.5b02897

Cite this

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title = "Million-fold electrical conductivity enhancement in Fe2(DEBDC) versus Mn2(DEBDC) (E = S, O)",

abstract = "Reaction of FeCl2 and H4DSBDC (2,5-disulfhydrylbenzene-1,4-dicarboxylic acid) leads to the formation of Fe2(DSBDC), an analogue of M2(DOBDC) (MOF-74, DOBDC4- = 2,5-dihydroxybenzene-1,4-dicarboxylate). The bulk electrical conductivity values of both Fe2(DSBDC) and Fe2(DOBDC) are \textasciitilde{}6 orders of magnitude higher than those of the Mn2+ analogues, Mn2(DEBDC) (E = O, S). Because the metals are of the same formal oxidation state, the increase in conductivity is attributed to the loosely bound Fe2+ β-spin electron. These results provide important insight for the rational design of conductive metal-organic frameworks, highlighting in particular the advantages of iron for synthesizing such materials.",

author = "Lei Sun and Hendon, \{Christopher H.\} and Minier, \{Mikael A.\} and Aron Walsh and Mircea Dincə",

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year = "2015",

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T1 - Million-fold electrical conductivity enhancement in Fe2(DEBDC) versus Mn2(DEBDC) (E = S, O)

AU - Sun, Lei

AU - Hendon, Christopher H.

AU - Minier, Mikael A.

AU - Walsh, Aron

AU - Dincə, Mircea

PY - 2015/5/20

Y1 - 2015/5/20

N2 - Reaction of FeCl2 and H4DSBDC (2,5-disulfhydrylbenzene-1,4-dicarboxylic acid) leads to the formation of Fe2(DSBDC), an analogue of M2(DOBDC) (MOF-74, DOBDC4- = 2,5-dihydroxybenzene-1,4-dicarboxylate). The bulk electrical conductivity values of both Fe2(DSBDC) and Fe2(DOBDC) are ~6 orders of magnitude higher than those of the Mn2+ analogues, Mn2(DEBDC) (E = O, S). Because the metals are of the same formal oxidation state, the increase in conductivity is attributed to the loosely bound Fe2+ β-spin electron. These results provide important insight for the rational design of conductive metal-organic frameworks, highlighting in particular the advantages of iron for synthesizing such materials.

AB - Reaction of FeCl2 and H4DSBDC (2,5-disulfhydrylbenzene-1,4-dicarboxylic acid) leads to the formation of Fe2(DSBDC), an analogue of M2(DOBDC) (MOF-74, DOBDC4- = 2,5-dihydroxybenzene-1,4-dicarboxylate). The bulk electrical conductivity values of both Fe2(DSBDC) and Fe2(DOBDC) are ~6 orders of magnitude higher than those of the Mn2+ analogues, Mn2(DEBDC) (E = O, S). Because the metals are of the same formal oxidation state, the increase in conductivity is attributed to the loosely bound Fe2+ β-spin electron. These results provide important insight for the rational design of conductive metal-organic frameworks, highlighting in particular the advantages of iron for synthesizing such materials.

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