Dimer formation of viologen derivatives and their electrochromic properties

Sung Hoon Kim; Jin Seok Bae; Seok Hwan Hwang; Tae Sun Gwon; Myung Ki Doh

doi:10.1016/S0143-7208(96)00023-X

Dimer formation of viologen derivatives and their electrochromic properties

Sung Hoon Kim, Jin Seok Bae, Seok Hwan Hwang, Tae Sun Gwon, Myung Ki Doh

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24 Scopus citations

Abstract

The electrochromic properties of 1,1′-diethyl-4,4′-hipyridinium dibromide (EV), 1,1′-dipropyl-4,4′-bipyridinium dihromide (PV), 1,1′-dibutyl-4,4′-bipyridinium dibromide (BV) and 1-ethyl-1′-butyl bipyridinium dibromide (EBV) were studied using a propylenecarbonate/methanol solution with Bu₄NBF₄ as the supporting electrolyte. A monomer-dimer equilibrium is proposed to explain the observation that the EV and EBV cation radical solutions are violet at an applied voltage of 1.7-3.0 V, but become blue in the open-circuit condition. C 1997 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	167-172
Number of pages	6
Journal	Dyes and Pigments
Volume	33
Issue number	2
DOIs	https://doi.org/10.1016/S0143-7208(96)00023-X
State	Published - Feb 1997

Keywords

Aggregation
Display
Electrochemistry
Electrochromism
ITO glass
Viologen

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10.1016/S0143-7208(96)00023-X

Cite this

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title = "Dimer formation of viologen derivatives and their electrochromic properties",

abstract = "The electrochromic properties of 1,1′-diethyl-4,4′-hipyridinium dibromide (EV), 1,1′-dipropyl-4,4′-bipyridinium dihromide (PV), 1,1′-dibutyl-4,4′-bipyridinium dibromide (BV) and 1-ethyl-1′-butyl bipyridinium dibromide (EBV) were studied using a propylenecarbonate/methanol solution with Bu4NBF4 as the supporting electrolyte. A monomer-dimer equilibrium is proposed to explain the observation that the EV and EBV cation radical solutions are violet at an applied voltage of 1.7-3.0 V, but become blue in the open-circuit condition. C 1997 Elsevier Science Ltd. All rights reserved.",

keywords = "Aggregation, Display, Electrochemistry, Electrochromism, ITO glass, Viologen",

author = "Kim, {Sung Hoon} and Bae, {Jin Seok} and Hwang, {Seok Hwan} and Gwon, {Tae Sun} and Doh, {Myung Ki}",

year = "1997",

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T1 - Dimer formation of viologen derivatives and their electrochromic properties

AU - Kim, Sung Hoon

AU - Bae, Jin Seok

AU - Hwang, Seok Hwan

AU - Gwon, Tae Sun

AU - Doh, Myung Ki

PY - 1997/2

Y1 - 1997/2

N2 - The electrochromic properties of 1,1′-diethyl-4,4′-hipyridinium dibromide (EV), 1,1′-dipropyl-4,4′-bipyridinium dihromide (PV), 1,1′-dibutyl-4,4′-bipyridinium dibromide (BV) and 1-ethyl-1′-butyl bipyridinium dibromide (EBV) were studied using a propylenecarbonate/methanol solution with Bu4NBF4 as the supporting electrolyte. A monomer-dimer equilibrium is proposed to explain the observation that the EV and EBV cation radical solutions are violet at an applied voltage of 1.7-3.0 V, but become blue in the open-circuit condition. C 1997 Elsevier Science Ltd. All rights reserved.

AB - The electrochromic properties of 1,1′-diethyl-4,4′-hipyridinium dibromide (EV), 1,1′-dipropyl-4,4′-bipyridinium dihromide (PV), 1,1′-dibutyl-4,4′-bipyridinium dibromide (BV) and 1-ethyl-1′-butyl bipyridinium dibromide (EBV) were studied using a propylenecarbonate/methanol solution with Bu4NBF4 as the supporting electrolyte. A monomer-dimer equilibrium is proposed to explain the observation that the EV and EBV cation radical solutions are violet at an applied voltage of 1.7-3.0 V, but become blue in the open-circuit condition. C 1997 Elsevier Science Ltd. All rights reserved.

KW - Aggregation

KW - Display

KW - Electrochemistry

KW - Electrochromism

KW - ITO glass

KW - Viologen

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U2 - 10.1016/S0143-7208(96)00023-X

DO - 10.1016/S0143-7208(96)00023-X

M3 - Article

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SN - 0143-7208

VL - 33

SP - 167

EP - 172

JO - Dyes and Pigments

JF - Dyes and Pigments

IS - 2

ER -

Dimer formation of viologen derivatives and their electrochromic properties

Abstract

Keywords

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