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

Research output: Contribution to journalArticle

114 Citations (Scopus)

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 ~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 languageEnglish
Pages (from-to)6164-6167
Number of pages4
JournalJournal of the American Chemical Society
Volume137
Issue number19
DOIs
Publication statusPublished - 2015 May 20

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Electric Conductivity
Metals
Dicarboxylic Acids
Iron
Electrons
Oxidation
Acids
hydroquinone

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Sun, Lei ; Hendon, Christopher H. ; Minier, Mikael A. ; Walsh, Aron ; Dincə, Mircea. / Million-fold electrical conductivity enhancement in Fe2(DEBDC) versus Mn2(DEBDC) (E = S, O). In: Journal of the American Chemical Society. 2015 ; Vol. 137, No. 19. pp. 6164-6167.
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Million-fold electrical conductivity enhancement in Fe2(DEBDC) versus Mn2(DEBDC) (E = S, O). / Sun, Lei; Hendon, Christopher H.; Minier, Mikael A.; Walsh, Aron; Dincə, Mircea.

In: Journal of the American Chemical Society, Vol. 137, No. 19, 20.05.2015, p. 6164-6167.

Research output: Contribution to journalArticle

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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

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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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