The role of the anion in the charge transfer properties of mixed-valent biferrocene

J. Matthaeus Speck, Marcus Korb, Alexander Hildebrandt, Heinrich Lang

Research output: Contribution to journalArticle

Abstract

The influence of electrolyte anions coordination/pairing properties on the electronic coupling in cationic mixed valent species is discussed on the example of biferrocene. The dependency on the solvent polarity was determined by using dichloromethane, acetonitrile and propylene carbonate. Within the UV-Vis/NIR spectro-electrochemical investigations, differences in the NIR absorption behavior was found for [BfcH][B(C6F5)(4)] (BfcH = biferrocene) in comparison to the hexafluorophosphate salt. Thus, it was shown that the increasing thermodynamic stability of cationic mixed-valent biferrocene is not solely rooted in a difference in Coulomb interactions.

Original languageEnglish
Pages (from-to)39-43
Number of pages5
JournalInorganica Chimica Acta
Volume483
DOIs
Publication statusPublished - 1 Nov 2018
Externally publishedYes

Cite this

Speck, J. Matthaeus ; Korb, Marcus ; Hildebrandt, Alexander ; Lang, Heinrich. / The role of the anion in the charge transfer properties of mixed-valent biferrocene. In: Inorganica Chimica Acta. 2018 ; Vol. 483. pp. 39-43.
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The role of the anion in the charge transfer properties of mixed-valent biferrocene. / Speck, J. Matthaeus; Korb, Marcus; Hildebrandt, Alexander; Lang, Heinrich.

In: Inorganica Chimica Acta, Vol. 483, 01.11.2018, p. 39-43.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The role of the anion in the charge transfer properties of mixed-valent biferrocene

AU - Speck, J. Matthaeus

AU - Korb, Marcus

AU - Hildebrandt, Alexander

AU - Lang, Heinrich

PY - 2018/11/1

Y1 - 2018/11/1

N2 - The influence of electrolyte anions coordination/pairing properties on the electronic coupling in cationic mixed valent species is discussed on the example of biferrocene. The dependency on the solvent polarity was determined by using dichloromethane, acetonitrile and propylene carbonate. Within the UV-Vis/NIR spectro-electrochemical investigations, differences in the NIR absorption behavior was found for [BfcH][B(C6F5)(4)] (BfcH = biferrocene) in comparison to the hexafluorophosphate salt. Thus, it was shown that the increasing thermodynamic stability of cationic mixed-valent biferrocene is not solely rooted in a difference in Coulomb interactions.

AB - The influence of electrolyte anions coordination/pairing properties on the electronic coupling in cationic mixed valent species is discussed on the example of biferrocene. The dependency on the solvent polarity was determined by using dichloromethane, acetonitrile and propylene carbonate. Within the UV-Vis/NIR spectro-electrochemical investigations, differences in the NIR absorption behavior was found for [BfcH][B(C6F5)(4)] (BfcH = biferrocene) in comparison to the hexafluorophosphate salt. Thus, it was shown that the increasing thermodynamic stability of cationic mixed-valent biferrocene is not solely rooted in a difference in Coulomb interactions.

KW - Biferrocene

KW - Mixed valency

KW - IVCT

KW - Electrochemistry

KW - Charge transfer

KW - Weakly coordinating electrolytes

KW - ORGANIC-SOLID-STATE

KW - ELECTRON-TRANSFER

KW - CYCLIC VOLTAMMETRY

KW - IMPROVED ELECTROCHEMISTRY

KW - SUPPORTING ELECTROLYTE

KW - INTERVALENCE TRANSFER

KW - NONAQUEOUS SOLVENTS

KW - DELTA-E-1/2 VALUES

KW - REDOX SYSTEMS

KW - TRANSFER IVCT

U2 - 10.1016/j.ica.2018.07.034

DO - 10.1016/j.ica.2018.07.034

M3 - Article

VL - 483

SP - 39

EP - 43

JO - Inorganica Chemica Acta

JF - Inorganica Chemica Acta

SN - 0020-1693

ER -