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

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

doi:10.1016/j.ica.2018.07.034

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 journal › Article › peer-review

12 Citations (Scopus)

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 language	English
Pages (from-to)	39-43
Number of pages	5
Journal	Inorganica Chimica Acta
Volume	483
DOIs	https://doi.org/10.1016/j.ica.2018.07.034
Publication status	Published - 1 Nov 2018
Externally published	Yes

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10.1016/j.ica.2018.07.034

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title = "The role of the anion in the charge transfer properties of mixed-valent biferrocene",

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.",

keywords = "Biferrocene, Mixed valency, IVCT, Electrochemistry, Charge transfer, Weakly coordinating electrolytes, ORGANIC-SOLID-STATE, ELECTRON-TRANSFER, CYCLIC VOLTAMMETRY, IMPROVED ELECTROCHEMISTRY, SUPPORTING ELECTROLYTE, INTERVALENCE TRANSFER, NONAQUEOUS SOLVENTS, DELTA-E-1/2 VALUES, REDOX SYSTEMS, TRANSFER IVCT",

author = "Speck, {J. Matthaeus} and Marcus Korb and Alexander Hildebrandt and Heinrich Lang",

year = "2018",

month = nov,

day = "1",

doi = "10.1016/j.ica.2018.07.034",

language = "English",

volume = "483",

pages = "39--43",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

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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

SN - 0020-1693

VL - 483

SP - 39

EP - 43

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

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

Abstract

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